# Make Transaction

In the following article, we will use this wallet as example:

```javascript
Address: 0x026A25EfbcEFb2e481d005E4F00Ccced0AF511FF
Private Key: 0x1c1a49fea9a4ede1dc8e582639f498d41fa3c4a9e2ab2b9d740a4a3ec14e1cbf
```

## Layer-1

The only transaction that made on Layer-1 is deposit. It has two sub-types which are `DepositETH` and `DepositERC20`.

### ABIs

```javascript
[
  {
    "constant": false,
    "inputs": [
      {
        "internalType": "contract IERC20",
        "name": "_token",
        "type": "address"
      },
      {
        "internalType": "uint104",
        "name": "_amount",
        "type": "uint104"
      },
      {
        "internalType": "address",
        "name": "_franklinAddr",
        "type": "address"
      }
    ],
    "name": "depositERC20",
    "outputs": [],
    "payable": false,
    "stateMutability": "nonpayable",
    "type": "function"
  },
  {
    "constant": false,
    "inputs": [
      {
        "internalType": "address",
        "name": "_franklinAddr",
        "type": "address"
      }
    ],
    "name": "depositETH",
    "outputs": [],
    "payable": true,
    "stateMutability": "payable",
    "type": "function"
  }
]
```

### Deposit ETH

Example Code:

```javascript
import { Wallet, Contract, utils } from 'ethers'

const contract = new Contract('0x8ECa806Aecc86CE90Da803b080Ca4E3A9b8097ad', ABI, wallet)
const wallet = new Wallet('0x1c1a49fea9a4ede1dc8e582639f498d41fa3c4a9e2ab2b9d740a4a3ec14e1cbf')

async function depositETH(amount) {
  const tx = await contract.depositETH(wallet.address, {
    value: utils.parse(amount)
  })
  return tx
}

// deposit 1 ETH
depositETH('1').then(console.log)
```

### Deposit ERC20

Like other projects, you must approve ZKSwap's main contract address to spend your ERC20 tokens in order to deposit. Be careful for those tokens that has limit on changing allowance (See <https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729>).

Example code:

```javascript
import { Wallet, Contract, utils } from 'ethers'

const contract = new Contract('0x8ECa806Aecc86CE90Da803b080Ca4E3A9b8097ad', ABI, wallet)
const wallet = new Wallet('0x1c1a49fea9a4ede1dc8e582639f498d41fa3c4a9e2ab2b9d740a4a3ec14e1cbf')

async function depositERC20(amount, tokenAddress) {
  const tokenContract = new Contract(tokenAddress, ERC20_ABI, wallet)
  // check allowance
  const allowance = await tokenContract.allowance(wallet.address, MAIN_CONTRACT_ADDRESS)
  let nonce
  if (allowance.lt(utils.parse(amount)) {
    // approve
    const MAX_AMOUNT = '0xffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff'
    const approveTx = await tokenContract.allow(MAIN_CONTRACT_ADDRESS, MAX_AMOUNT)
    nonce = approveTx.nonce + 1
  }
  const tx = await contract.depositERC20(tokenAddress, utils.parse(amount), wallet.address, {
    nonce
  })
  return tx
}

// deposit 100 ZKS
depositERC20('100', '0xe4815ae53b124e7263f08dcdbbb757d41ed658c6').then(console.log)
```

## Layer-2

When submitting transaction to ZKSwap, the API requires 3 fields: `tx`, `signature` and `fastProcessing`.In the following docs, `Signed Transaction` refers to the `tx` field and `ETH Signature` refers to the `signature` field.

### Private Key

Sign the following message with Layer-1's private key to get Layer-2's seed. And use [zkSync's crypto libraries](https://zksync.io/api/sdk/crypto.html) to get private key.

{% tabs %}
{% tab title="Plain Text" %}

```
Access ZKSwap account.

Only sign this message for a trusted client!
```

{% endtab %}

{% tab title="JavaScript" %}

```javascript
const msg = 'Access ZKSwap account.\n\nOnly sign this message for a trusted client!'
```

{% endtab %}
{% endtabs %}

Here's a full example of getting private key using [zksync-crypto](https://www.npmjs.com/package/zksync-crypto) in JavaScript.

```javascript
import { Wallet, Contract, utils } from 'ethers'
import { privateKeyFromSeed, private_key_to_pubkey_hash } from 'zksync-crypto'

const wallet = new Wallet('0x1c1a49fea9a4ede1dc8e582639f498d41fa3c4a9e2ab2b9d740a4a3ec14e1cbf')

async function getPrivateKey() {
    const msg = 'Access ZKSwap account.\n\nOnly sign this message for a trusted client!'
    const signature = await wallet.signMessage(msg)
    const seed = utils.arrayify(signature)

    // Get private key
    const privateKey = privateKeyFromSeed(seed)
    
    return privateKey
}

getPrivateKey().then(console.log)
```

### Public Key Hash

After getting private key, you will need to register you publick key hash to ZKSwap so that it can verify transations that you sent.

```javascript
import { utils } from 'ethers'
import { private_key_to_pubkey_hash } from 'zksync-crypto'

const pubKeyHash = `sync:${utils.hexlify(private_key_to_pubkey_hash(privateKey)).substr(2)}`
```

### Signature

Before submit transaction to ZKSwap, you need to sign the the transaction data.

```javascript
import { utils } from 'ethers'
import { sign_musig } from 'zksync-crypto'

function signMessage(privateKey, msgBytes) {
    const signaturePacked = sign_musig(privateKey, msgBytes)
    
    const pubKey = utils.hexlify(signaturePacked.slice(0, 32)).substr(2)
    const signature = utils.hexlify(signaturePacked.slice(32)).substr(2)
    
    return {
        pubKey,
        signature
    }
}

const msgBytes = utils.concat([type, accountId, ...etc])
const signature = signMessage(privateKey, msgBytes)

```

### Change Public Key

After the account has been "registered" on ZKSwap (via transfer or deposit), you can change the account's `pubKeyHash` in order to make any transaction on Layer-2. This is a special transaction that you don't need to sign it with Layer-2's private key.

**Transaction Fields**

| **Field**    | Type    | Comment              |
| ------------ | ------- | -------------------- |
| type         | string  | ChangePubKey         |
| accountId    | number  | Your account ID.     |
| account      | address | Your address.        |
| newPkHash    | number  | The public key hash. |
| nonce        | number  | Your current nonce.  |
| ethSignature | string  | Layer-1 signature    |

**Signed Transaction Example**

```javascript
{
    "type": "ChangePubKey",
    "accountId": 83670,
    "account": "0x026A25EfbcEFb2e481d005E4F00Ccced0AF511FF",
    "newPkHash": "sync:83f62ba777515089eb905a375f77f59ddfada116",
    "nonce": 0,
    "ethSignature": "0x66c1ef3611a634e400301375b291a0835b0e31237273e1bdab45acc3ef27c761674fd5e5a706566e5175e8e18306f5b8d1d36016f3894e84d527c3c97e92bcf71c"
}
```

**ETH Signature**

{% tabs %}
{% tab title="Message Template" %}

```
Register ZKSwap pubkey:

{pubKeyHash}
nonce: {hexlifiedNonce}
account id: {hexlifiedAccountId}

Only sign this message for a trusted client!
```

{% endtab %}

{% tab title="Message Example" %}

```
Register ZKSwap pubkey:

83f62ba777515089eb905a375f77f59ddfada116
nonce: 0x00000000
account id: 0x000146d6

Only sign this message for a trusted client!
```

{% endtab %}

{% tab title="Signature" %}

```
0x66c1ef3611a634e400301375b291a0835b0e31237273e1bdab45acc3ef27c761674fd5e5a706566e5175e8e18306f5b8d1d36016f3894e84d527c3c97e92bcf71c
```

{% endtab %}
{% endtabs %}

**NOTE**: The `{pubKeyHash}` in the above message doesn't contain 0x as prefix. The `{hexlifiedNonce}` and `{hexlifiedAccountId}` has 4-bytes length with 0 padding in the start and 0x as prefx. See example for reference.

### Transfer

**Transaction Fields**

| Bytes Order | **Field** | Type    | Bytes Length | Comment                                  | Bytes Example                                |
| ----------- | --------- | ------- | ------------ | ---------------------------------------- | -------------------------------------------- |
| 0           | type      | string  | 1            | Transfer                                 | `0x05`                                       |
| 1           | accountId | number  | 4            | Your account ID.                         | `0x0000053a`                                 |
| 2           | from      | address | 20           | Your address.                            | `0x026a25efbcefb2e481d005e4f00ccced0af511ff` |
| 3           | to        | address | 20           | The target address you want to transfer. | `0x961b513dfd3e363c238e0f98219ee02552a847bd` |
| 4           | token     | number  | 2            | The ID of the token.                     | `0x000a`                                     |
| 5           | amount    | string  | 5            | The packed amount you want to transfer.  | `0x4a817c8008`                               |
| 6           | feeToken  | number  | 1            | The ID of fee token.                     | `0x0a`                                       |
| 7           | fee       | string  | 2            |                                          | `0x0000`                                     |
| 8           | chainId   | number  | 1            | 11 for mainnet, 128 for ropsten.         | `0x0b`                                       |
| 9           | nonce     | number  | 4            | Your current nonce.                      | `0x00000001`                                 |
| -           | signature | object  |              | Contains your `pubKey` and signature.    |                                              |

**Full Bytes Example**

```
0x050000053a026a25efbcefb2e481d005e4f00ccced0af511ff961b513dfd3e363c238e0f98219ee02552a847bd000a4a817c80080a00000b00000001
```

**Signed Transaction Example**

```javascript
{
    "type": "Transfer",
    "accountId": 1338,
    "from": "0x026A25EfbcEFb2e481d005E4F00Ccced0AF511FF",
    "to": "0x961b513dfd3e363c238e0f98219ee02552a847bd",
    "token": 10,
    "amount": "1000000000000000000",
    "feeToken": 10,
    "fee": "0",
    "chainId": 11,
    "nonce": 1,
    "signature": {
        "pubKey": "110ffd569daaee30068fc3c85922d1237f63a41d4749d464b883131e92369204",
        "signature": "7db4f4ce33abf89cbccaff96ae0651c79043dcf965893de71e7388163ec57883b2d4ef9bf264346ceff69f9ba8dfe8624d1fad9a452acf10a5d15f956a0a7b03"
    }
}
```

**ETH Signature**

{% tabs %}
{% tab title="Message Template" %}

```
Transfer {readableAmount} {tokenSymbol}
To: {to}
Chain Id: {chainId}
Nonce: {nonce}
Fee: {readableFee} {feeTokenSymbol}
Account Id: {accountId}
```

{% endtab %}

{% tab title="Message Example" %}

```
Transfer 1.0 ZKS
To: 0x961b513dfd3e363c238e0f98219ee02552a847bd
Chain Id: 11
Nonce: 1
Fee: 0.0 ZKS
Account Id: 1338
```

{% endtab %}

{% tab title="Signature" %}

```javascript
{
    "type": "EthereumSignature",
    "signature": "0xbf8fa93e7da866aa3acb07a6a826e5e61195eba04e3c72a4f02b8fc8221da1f764363817968576013ca515ffe5e1104b5890937150883f3304d0738777af915b1c"
}
```

{% endtab %}
{% endtabs %}

### Withdraw

**Transaction Fields**

| Bytes Order | **Field** | Type    | Bytes Length | Comment                                     | Bytes Example                                |
| ----------- | --------- | ------- | ------------ | ------------------------------------------- | -------------------------------------------- |
| 0           | type      | string  | 1            | Withdraw                                    | `0x03`                                       |
| 1           | accountId | number  | 4            | Your account ID.                            | `0x0000053a`                                 |
| 2           | from      | address | 20           | Your address.                               | `0x026a25efbcefb2e481d005e4f00ccced0af511ff` |
| 3           | to        | address | 20           | The target address you want to withdraw to. | `0x026a25efbcefb2e481d005e4f00ccced0af511ff` |
| 4           | token     | number  | 2            | The ID of the token you want to withdraw.   | `0x000a`                                     |
| 5           | amount    | string  | 16           | The amount you want to withdraw.            | `0x00000000000000000de0b6b3a7640000`         |
| 6           | feeToken  | number  | 1            | The ID of fee token.                        | `0x0a`                                       |
| 7           | fee       | string  | 2            |                                             | `0x4bf0`                                     |
| 8           | chainId   | number  | 1            | 11 for mainnet, 128 for ropsten.            | `0x0b`                                       |
| 9           | nonce     | number  | 4            | Your current nonce.                         | `0x00000002`                                 |
| -           | signature | object  |              | Contains your `pubKey` and signature.       |                                              |

**Full Bytes Example**

```
0x030000053a026a25efbcefb2e481d005e4f00ccced0af511ff026a25efbcefb2e481d005e4f00ccced0af511ff000a00000000000000000de0b6b3a76400000a4bf00b00000002
```

**Signed Transaction Example**

```javascript
{
    "type": "Withdraw",
    "accountId": 1338,
    "from": "0x026A25EfbcEFb2e481d005E4F00Ccced0AF511FF",
    "to": "0x026a25efbcefb2e481d005e4f00ccced0af511ff",
    "token": 10,
    "amount": "1000000000000000000",
    "feeToken": 10,
    "fee": "6070000000000000000",
    "chainId": 11,
    "nonce": 2,
    "signature": {
        "pubKey": "110ffd569daaee30068fc3c85922d1237f63a41d4749d464b883131e92369204",
        "signature": "68bb8413edc0182812aa90481ff46f0514df9d5d6b5703338f1a292682caad9b04cac623f95b9d26fa31d4a9330ba35b5746fd697853a0512f92b00692fe6d00"
    }
}
```

**ETH Signature**

{% tabs %}
{% tab title="Message Template" %}

```
Withdraw {readableAmount} {tokenSymbol}
To: {to}
Chain Id: {chainId}
Nonce: {nonce}
Fee: {readableFee} {feeTokenSymbol}
Account Id: {accountId}
```

{% endtab %}

{% tab title="Message Example" %}

```
Withdraw 3.4226556417 ZKS
To: 0x026a25efbcefb2e481d005e4f00ccced0af511ff
ChainId 10
Nonce: 2
Fee: 1.577 ZKS
Account Id: 83670
```

{% endtab %}

{% tab title="Signature" %}

```javascript
{
    "type": "EthereumSignature",
    "signature": "0x0440667d6a694b76e5f3a51fa3981a3db95bfc7d3feeb301f403ea6f3bef01d32c9e06920f7b13edd92a6cb22f49d6709fb4f9d41efc09b0a094173b6bbb4f121b"
}
```

{% endtab %}
{% endtabs %}

### Swap

#### **Fee**

Let's take swap token A for token B as example. There are two cases:

1. If A is a fee token, the fee token of swap is A. The number of fee is calculated by `amountIn * 5 / 9995`
2. If A is not a fee token, the fee token of swap is B. The number of fee is `amountOut * 5 /10000`. It's not `amountOutMin`. `amountOut` equals `amountOutMin` then slipplage is 0.

**Transaction Fields**

| Bytes Order | **Field**    | Type    | Bytes Length | Comment                                   | Bytes Example                                |
| ----------- | ------------ | ------- | ------------ | ----------------------------------------- | -------------------------------------------- |
| 0           | type         | string  | 1            | Swap                                      | `0x0b`                                       |
| 1           | accountId    | number  | 4            | Your account ID.                          | `0x0000053a`                                 |
| 2           | from         | address | 20           | Your address.                             | `0x026a25efbcefb2e481d005e4f00ccced0af511ff` |
| 3           | to           | address | 20           | The pair's address.                       | `0xaa45c964e21eafb38574e9d000adbaf85acfbb80` |
| 4           | tokenIn      | number  | 2            | The ID of the token you want to swap in.  | `0x000a`                                     |
| 5           | amountIn     | string  | 5            | The amount you want to swap in.           | `0x94efe63009`                               |
| 6           | tokenOut     | number  | 2            | The ID of the token you want to swap out. | `0x0000`                                     |
| 7           | amountOutMin | string  | 5            | The minimum amount  you want to swap out. | `0x25004d47c6`                               |
| 8           | feeToken     | number  | 1            | The ID of fee token.                      | `0x0a`                                       |
| 9           | fee          | string  | 2            |                                           | `0x7d0d`                                     |
| 10          | chainId      | number  | 1            | 11 for mainnet, 128 for ropsten.          | `0x0b`                                       |
| 11          | nonce        | number  | 4            | Your current nonce.                       | `0x00000003`                                 |
| -           | signature    | object  |              | Contains your `pubKey` and signature.     |                                              |

**Full Bytes Example**

```
0x0b0000053a026a25efbcefb2e481d005e4f00ccced0af511ffaa45c964e21eafb38574e9d000adbaf85acfbb80000a94efe63009000025004d47c60a7d0d0b00000003
```

**Signed Transaction Example**

```javascript
{
    "type": "Swap",
    "accountId": 1338,
    "from": "0x026A25EfbcEFb2e481d005E4F00Ccced0AF511FF",
    "to": "0xaa45c964e21eafb38574e9d000adbaf85acfbb80",
    "tokenIn": 10,
    "tokenOut": 0,
    "amountIn": "19990000000000000000",
    "amountOutMin": "4966214206000000",
    "feeToken": 10,
    "fee": "10000000000000000",
    "chainId": 11,
    "nonce": 3,
    "signature": {
        "pubKey": "110ffd569daaee30068fc3c85922d1237f63a41d4749d464b883131e92369204",
        "signature": "3c6c2059ab0e929ed18d6ad4fbbf1cddce0e84b0cb9537069456b16cd01f33a2bc5391f8f7e1b9ae8fdff4c5d05856709e6bfd0e9200f5293386cf1aa6b39c00"
    }
}
```

**ETH Signature**

{% tabs %}
{% tab title="Message Template" %}

```
Swap {readableAmontIn} {tokenInSymbol}
Minimum: {readableAmontOutMin} {tokenOutSymbol}
To: {pairAddress}
Chain Id: {chainId}
Nonce: {nonce}
Fee: {readableFee} {feeTokenSymbol}
Account Id: {accountId}
```

{% endtab %}

{% tab title="Message Example" %}

```
Swap 19.99 ZKS
Minimum: 0.004966214206 ETH
To: 0xaa45c964e21eafb38574e9d000adbaf85acfbb80
Chain Id: 11
Nonce: 3
Fee: 0.01 ZKS
Account Id: 1338
```

{% endtab %}

{% tab title="Signature" %}

```javascript
{
    "type": "EthereumSignature",
    "signature": "0x66ca505f09e2dbd2aaaa809cac3ec7085ea7831ec58c695566190588a2ced45c0d7e1c235840dd3f547d54ad87e6740bb3d299a89d36460b9eb1e56b25456ef41b"
}
```

{% endtab %}
{% endtabs %}

### Add Liquidity

**Transaction Fields**

| Bytes Order | **Field**      | Type    | Bytes Length | Comment                                                    | Bytes Example                                |
| ----------- | -------------- | ------- | ------------ | ---------------------------------------------------------- | -------------------------------------------- |
| 0           | type           | string  | 1            | AddLiquidity                                               | `0x09`                                       |
| 1           | accountId      | number  | 4            | Your account ID.                                           | `0x0000053a`                                 |
| 2           | from           | address | 20           | Your address.                                              | `0x026a25efbcefb2e481d005e4f00ccced0af511ff` |
| 3           | to             | address | 20           | The pair's address.                                        | `0xaa45c964e21eafb38574e9d000adbaf85acfbb80` |
| 4           | tokenA         | number  | 2            | The ID of token A.                                         | `0x0000`                                     |
| 5           | amountADesired | number  | 5            | The amount of token A you want to add to the pair.         | `0xc2cf6f3245`                               |
| 6           | amountAMin     | string  | 5            | The minimum amount of Token A you want to add to the pair. | `0xb911dcd625`                               |
| 7           | tokenB         | number  | 2            | The ID of the token B.                                     | `0x000a`                                     |
| 8           | amountBDesired | string  | 5            | The amount of token B you want to add to the pair.         | `0x4a817c8009`                               |
| 9           | amountBMin     | string  | 5            | The minimum amount of Token B you want to add to the pair. | `0x46c7cfe009`                               |
| 10          | tokenLiquidity | number  | 2            | The pair ID.                                               | `0x4002`                                     |
| 11          | feeToken       | number  | 1            | The ID of fee token.                                       | `0x0a`                                       |
| 12          | fee            | string  | 2            |                                                            | `0x0000`                                     |
| 13          | chainId        | number  | 1            | 11 for mainnet, 128 for ropsten.                           | `0x0b`                                       |
| 14          | nonce          | number  | 4            | Your current nonce.                                        | `0x00000004`                                 |
| -           | signature      | object  |              | Contains your `pubKey` and signature.                      |                                              |

**Full Bytes Example**

```
0x090000053a026a25efbcefb2e481d005e4f00ccced0af511ffaa45c964e21eafb38574e9d000adbaf85acfbb800000c2cf6f3245b911dcd625000a4a817c800946c7cfe00940020a00000b00000004
```

**Signed Transaction Example**

```javascript
{
    "type": "AddLiquidity",
    "accountId": 1338,
    "from": "0x026A25EfbcEFb2e481d005E4F00Ccced0AF511FF",
    "to": "0xaa45c964e21eafb38574e9d000adbaf85acfbb80",
    "tokenA": 0,
    "tokenB": 10,
    "tokenLiquidity": 16386,
    "amountADesired": "2614699457800000",
    "amountBDesired": "10000000000000000000",
    "amountAMin": "2483964484900000",
    "amountBMin": "9500000000000000000",
    "feeToken": 10,
    "fee": "0",
    "chainId": 11,
    "nonce": 4,
    "signature": {
        "pubKey": "110ffd569daaee30068fc3c85922d1237f63a41d4749d464b883131e92369204",
        "signature": "3506a865b8a0871b706a620abbf7978760f76670c2d563f059d217890349988dd7a37d1cea3f67d5ca691453dd45d282141acac3f4dafb9f7a44b1dda3e0ca00"
    }
}
```

**ETH Signature**

{% tabs %}
{% tab title="Message Template" %}

```
AddLiquidity {pairSymbol}
Desired: {readableAmontA} {tokenASymbol} {readableAmontB} {tokenBSymbol}
Minimum: {readableAmontAMin} {tokenASymbol} {readableAmontBMin} {tokenBSymbol}
To: {pairAddress}
Chain Id: {chainId}
Nonce: {nonce}
Fee: {readableFee} {feeTokenSymbol}
Account Id: {accountId}
```

{% endtab %}

{% tab title="Message Example" %}

```
AddLiquidity liquidity_0_10
Desired: 0.0026146994578 ETH 10.0 ZKS
Minimum: 0.0024839644849 ETH 9.5 ZKS
To: 0xaa45c964e21eafb38574e9d000adbaf85acfbb80
Chain Id: 11
Nonce: 4
Fee: 0.0 ZKS
Account Id: 1338
```

{% endtab %}

{% tab title="Signature" %}

```javascript
{
    "type": "EthereumSignature",
    "signature": "0x20c1c26e8f678220189f0a4a444e1686e969faa536a17abc1a30a113d6e4bfc12aa88a2075693857ea410f439d28467b01666bcb01d1b6bb7b8ce3641bd6daea1b"
}
```

{% endtab %}
{% endtabs %}

### Remove Liquidity

**Transaction Fields**

| Bytes Order | **Field**       | Type    |    | Comment                                                         | Bytes Examplle                               |
| ----------- | --------------- | ------- | -- | --------------------------------------------------------------- | -------------------------------------------- |
| 0           | type            | string  | 1  | RemoveLiquidity                                                 | `0x0a`                                       |
| 1           | accountId       | number  | 4  | Your account ID.                                                | `0x0000053a`                                 |
| 2           | from            | address | 20 | Your address.                                                   | `0x026a25efbcefb2e481d005e4f00ccced0af511ff` |
| 3           | to              | address | 20 | The pair's address.                                             | `0xaa45c964e21eafb38574e9d000adbaf85acfbb80` |
| 4           | tokenA          | number  | 2  | The ID of token A.                                              | `0x0000`                                     |
| 5           | amountAMin      | string  | 5  | The minimum amount of Token A you want to remove from the pair. | `0xb96855c485`                               |
| 6           | tokenB          | number  | 2  | The ID of the token B.                                          | `0x000a`                                     |
| 7           | amountBMin      | string  | 5  | The minimum amount of Token B you want to remove from the pair. | `0x46a6e21049`                               |
| 8           | feeToken        | number  | 1  | The ID of fee token.                                            | `0x0a`                                       |
| 9           | fee             | string  | 2  |                                                                 | `0x0000`                                     |
| 10          | tokenLiquidity  | number  | 2  | The pair ID.                                                    | `0x4002`                                     |
| 11          | amountLiquidity | string  | 5  | The amount of LP token you want to remove.                      | `0x77e80cdba7`                               |
| 12          | chainId         | number  | 2  | 11 for mainnet, 128 for ropsten.                                | `0x0b`                                       |
| 13          | nonce           | number  | 4  | Your current nonce.                                             |                                              |
| -           | signature       | object  |    | Contains your `pubKey` and signature.                           |                                              |

**Full Bytes Example**

```
0x0a0000053a026a25efbcefb2e481d005e4f00ccced0af511ffaa45c964e21eafb38574e9d000adbaf85acfbb800000b96855c485000a46a6e210490a0000400277e80cdba70b00000005
```

**Signed Transaction Example**

```javascript
{
    "type": "RemoveLiquidity",
    "accountId": 1338,
    "from": "0x026A25EfbcEFb2e481d005E4F00Ccced0AF511FF",
    "to": "0xaa45c964e21eafb38574e9d000adbaf85acfbb80",
    "tokenA": 0,
    "tokenB": 10,
    "amountAMin": "2488498128400000",
    "amountBMin": "9482735746000000000",
    "tokenLiquidity": 16386,
    "amountLiquidity": "160935707810000000",
    "feeToken": 10,
    "fee": "0",
    "chainId": 11,
    "nonce": 5,
    "signature": {
        "pubKey": "110ffd569daaee30068fc3c85922d1237f63a41d4749d464b883131e92369204",
        "signature": "bf0e5c3639e9f9f837e2d141fa9481da8e11574001dbe8cd81cb3005c9cac69ae05655d416cd53bedd27142235ad5743e9f26b66ac8643d859d0c8caf149a700"
    }
}
```

**ETH Signature**

{% tabs %}
{% tab title="Message Template" %}

```
RemoveLiquidity {readableLiquidityAmount} {pairSymbol}
Minimum: {readableAmontAMin} {tokenASymbol} {readableAmontBMin} {tokenBSymbol}
To: {pairAddress}
Chain Id: {chainId}
Nonce: {nonce}
Fee: {readableFee} {feeTokenSymbol}
Account Id: {accountId}
```

{% endtab %}

{% tab title="Message Example" %}

```
RemoveLiquidity 0.16093570781 liquidity_0_10
Minimum: 0.0024884981284 ETH 9.482735746 ZKS
To: 0xaa45c964e21eafb38574e9d000adbaf85acfbb80
Chain Id: 11
Nonce: 5
Fee: 0.0 ZKS
Account Id: 1338
```

{% endtab %}

{% tab title="Signature" %}

```
{
    "type": "EthereumSignature",
    "signature": "0x85ce1409808a56b4522b6787d397d4b5d04a926e701a72b1388fff74f447650b1789c6bb7487b638bb1f6100faaa318b37311d831f07252bd0971331e61b8ad51b"
}
```

{% endtab %}
{% endtabs %}