title: Does firebase manage user data like device token, bundle id etc at their own when sending push notifications or we have to manage these data?
body: <p>I was previously using parse for sending push notifications but now we are required to switch to other service provider. I am thinking of using firebase as my only requirement is sending push notifications on IOS and Android, and firebase seems to  be close to what my requirements are.</p>
  
  <p>I was searching for any facility provided by firebase to manage the user's data as in their device ids against the bundles they are entitled to. So, When i have to broadcast notifications, will firebase be retrieving appropriate bundles based on userid (or something like that) and vice versa (as parse was doing)? or do i need to manage this data and pick up appropriate device id before sending notifications?</p>
  
  <p>Please help</p>