eth_signTransaction - Arbitrum

Example code for the eth_signTransaction JSON RPC method. Сomplete guide on how to use eth_signTransaction JSON RPC in GetBlock Web3 documentation.

This method signs a transaction using the private key of the given account without broadcasting. This method requires the signing account to be unlocked or controlled by a wallet provider.

This method requires the account to be unlocked on the node or handled by a wallet provider such as MetaMask.

Parameters

Field	Type	Required	Description
from	string	Yes	The address signing the transaction. Must be unlocked or controlled by a wallet.
to	string	Yes	Receiver address. Null if deploying a smart contract.
gas	string	no	Gas limit for execution.
gasPrice	string	no	Gas price in wei.
maxPriorityFeePerGas	string	no	EIP 1559 priority fee.
maxFeePerGas	string	Yes	EIP 1559 max total fee.
value	string	Yes	Amount of ETH sent, in wei. .
data	string	Yes	Hex encoded input data for contract interaction. .
nonce	string	Yes	Nonce number for the transaction. .

Request

cURL

curl --location 'https://go.getblock.us/<ACCESS_TOKEN>' \
--header 'Content-Type: application/json' \
--data '{
   "jsonrpc": "2.0",
    "method": "eth_signTransaction",
    "params": [
        {
            "from":  "0xd1af2dac4e0a9d1f58b99e2f42bc0320ed74a7cd",
        
            "to": "0xd26ea0f03100358b2ebd4c9638f042aada9a1bcf",
            "gas": "0x76c0",
            "gasPrice": "0x9184e72a000",
            "nonce": "0x3c",
            "value": "0x9184e72a",
            "data": "0xd46e8dd67c5d32be8d46e8dd67c5d32be8058bb8eb970870f072445675058bb8eb970870f072445675"
        }],
    "id": "getblock.io"
}'

Axios

Request

Rust

Response

{
  "jsonrpc": "2.0",
  "id": 1,
  "result": {
    "raw": "0xf86c808...",
    "tx": {
      "nonce": "0x0",
      "gas": "0x5208",
      "value": "0x0",
      "to": "0xE592427A0AEce92De3Edee1F18E0157C05861564",
      "from": "0x742d35Cc6634C0532925a3b844Bc454e4438f44e"
    }
  }
}

Reponse Parameter Definition

Field	Type	Description
raw	string	Signed raw transaction in hex. Can be broadcast using eth_sendRawTransaction.
tx.from	string	Address that signed the transaction.
tx.to	string or null	Recipient address or null for contract deployment.
tx.nonce	string	Nonce used for the transaction.
tx.gas	string	Gas limit.
tx.gasPrice	string	Gas price in wei for legacy transactions.
tx.maxPriorityFeePerGas	string	Priority fee (EIP 1559).
tx.maxFeePerGas	string	Maximum total fee (EIP 1559).
tx.value	string	Amount of ETH sent in wei.
tx.data	string	Encoded call data or contract bytecode.
tx.chainId	string	Chain identifier for replay protection.
tx.v	string	Recovery ID used to verify the signature.
tx.r	string	First half of the signature.
tx.s	string	Second half of the signature.

Use case

The eth_signTransaction method helps developers to:

• Prepare transactions before broadcasting them

• Build cold wallet or multisig-style signing workflows

• Use relayers or batch processors that require signed payloads

• Enable advanced transaction flows where signing and sending occur separately

• Allow hardware wallets or custodial services to authorize a transaction before submission

• Support meta transaction systems and gas-sponsored flows

Error handling

Status Code	Error Message	Cause
403	Forbidden	Missing or invalid ACCESS_TOKEN.
-3200	Unknown account	Invalid account address user rejected request message must be hex or string

Integration with Web3

The eth_sign method enables developers to:

• Sign transactions without broadcasting them

• Deliver signed raw transactions to relayers

Ethers.js

import { ethers } from "ethers";
const RPC_URL = "https://go.getblock.us/<ACCESS_TOKEN>";
const provider = new ethers.JsonRpcProvider(RPC_URL);
async function Call() {
  try {
     const result = await provider.send("eth_sign",
 [
    "0x742d35Cc6634C0532925a3b844Bc454e4438f44e",
    "0x48656c6c6f20576f726c64"
  ]);    
console.log("The result:", result);
    return result;
  } catch (error) {
    console.error("The error:", error);
    throw error;
  }
}