3 - MPNS (channel URI for microsoft push).2 - FCM (firebase token for google firebase).Use account.unregisterDevice to unsubscribe. It is useful to repeat this query at least once every 24 hours or when restarting the application. To subscribe to notifications, the client must invoke the account.registerDevice query, passing in token_type and token as parameters that identify the current device.
To be able to send APNS notifications to Apple servers or GCM notifications to Google servers, application certificates (APNS) or an application key (GCM) must be specified in the application settings.
