signMessage
signMessage supports signing messages from the PortalSigner.
This method must be called after authenticate. Otherwise, this method will throw an error with the message Not Authenticated.
Usage
example.ts
import { createPortalSigner } from "./portal";
const portalSigner = await createPortalSigner();
const signedMessage = await portalSigner.signMessage("test");Returns
Promise<Hex>
A Promise containing the signature of the message.