class MyActor(openId: String, initialState: Receive) extends Actor {


  val connected: (String) => Receive = (openId: String) => {
    case AuthorizedOk(user) => context.become(authorized(user))
    ...
    case message => unhandled(message)
  }


  val authorized: (IUserInfo) => Receive = (user: IUserInfo) => {
    case SomeLogic => context.become(...)
    case message => unhandled(message)
  }


  def receive: Actor.Receive = initialState

}

new MyActor("id", ???)