For my current side project (aside from TankZ! [https://manuel-rauber.com/2015/06/15/tankz-a-game-made-to-learn-unity/];-)) I’m using Auth0 [http://auth0.com] for identity management as well as SequelizeJS [http://docs.sequelizejs.com/en/latest/] with a MS SQL server. That said, I don’t have the user data