registration_idstring required
device_idinteger nullable
ANDROID_ID / TelephonyManager.getDeviceId() (e.g: 0x01)
activeboolean
Inactive devices will not be sent notifications
date_createdstring date-time nullable required
cloud_message_type'FCM' | 'GCM'
- FCM - Firebase Cloud Message
- GCM - Google Cloud Message
application_idstring nullable
Opaque application identity, should be filled in for multiple key/certificate access