Sign messages

Signs an arbitrary message using the current wallet's private key.

This method is typically used for identity verification, secure login flows, or proving wallet ownership without sending a transaction.

signMessage(message: string, nonce?: string): Promise<WalletSignMessageOutput>

WalletSignMessageOutput:

Name	Is Required	Description
message	Yes	The original message that was passed to the signMessage function.
nonce	Yes	The nonce used during signing. If not provided, it is auto-generated.
fullMessage	Yes	The final message that was actually signed. Typically includes the nonce.
signature	Yes	The generated signature in hexadecimal format.

Sign a message and retrieve a signature that represents the wallet

const MESSAGE = "Hello, Fantasys!";
const result = await wallet.signMessage(MESSAGE);
const { signature, fullMessage } = result;
// You can then verify the signature