authenticate

const params = await walletClient.authenticate({
  message: 'example.com wants you to sign in with your Ethereum account...',
  signature: '0x9335c3055d47780411a3fdabad293c68c84ea350a11794cdc811fd5...',
  authMethod: 'authAddress',
  fid: 1,
  username: 'alice',
  bio: "I'm a little teapot who didn't fill out my bio",
  displayName: 'Alice Teapot',
  pfpUrl: 'https://images.example.com/profile.png',
});

{
  response: Response
  data: {
      state: 'completed'
      nonce: string
      message?: string
      signature?: `Hex`
      fid?: number
      username?: string
      bio?: string
      displayName?: string
      pfpUrl?: string
  }
  isError: boolean
  error: Error
}