Unlike traditional EOA (Externally Owned Account) message signing, GP Safe message signing goes through the delay module.
Message signing with GP Safe requires the account to be fully configured with the delay module enabled. If you haven’t set up your Safe account yet, see the Safe Account Configuration section first.

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Message Signing Process

GP Safe message signing follows the same two-phase pattern as other delayed operations:
  1. Enqueue Phase: Submit the message signing request to the delay queue
  2. Dispatch Phase: Execute the message signing after the delay period expires
You can find a complete working example here.
1

Prepare the Message

First, prepare the message you want to sign.This can be any string, such as:
const message = "Hello, this is a message to be signed by my GP Safe!";
Or structured data that needs to be signed by your GP Safe account.
2

Enqueue the Message Signing Request

Use the populateSignMessageEnqueue function to create a transaction that submits your message signing request to the delay queue.
import { populateSignMessageEnqueue } from "@gnosispay/account-kit";

const owner: Signer = {}; // Your wallet signer
const account = "0x..."; // Your GP Safe address
const chainId = 100; // Gnosis Chain

const enqueueTx = await populateSignMessageEnqueue(
  { account, chainId },
  message,
  // EIP-712 signature callback
  ({ domain, primaryType, types, message }) =>
    owner.signTypedData(domain, primaryType, types, message)
);

// Send the enqueueTx using your wallet
This transaction will be queued in the delay module and cannot be executed immediately. The delay period (typically 3 minutes) must pass before the message can be signed.
3

Wait for the Delay Period

The message signing request is now in the delay queue. You must wait for the configured cooldown period to expire before proceeding.
The default delay period is 3 minutes (180 seconds). This provides time for you to review and potentially cancel the operation if needed.
You can check the delay queue status using the accountQuery function from @gnosispay/account-kit.
4

Dispatch the Message Signing

Once the delay period has expired, use the populateSignMessageDispatch function to execute the queued message signing operation.
import { populateSignMessageDispatch } from "@gnosispay/account-kit";

const dispatchTx = populateSignMessageDispatch(
  { account },
  message
);

// Send the dispatchTx using your wallet
Unlike the enqueue transaction, the dispatch transaction doesn’t require a signature since it’s executing a previously authorized operation.