Julio did report [1], and when defaulting to topics, this is not working - as have no direct control.

We can do the following:
* do an unsubscribe when the checkbox is disabled AND re-subscribe when it's enabled again. We could leverage code from Oleg's TopicMgr ([2])
* remove the 'receive' checkbox
* give some context, on when it is working (for Android)


[1] https://issues.jboss.org/browse/AEROGEAR-1742
[2] https://github.com/aerogear/aerogear-unifiedpush-server/blob/master/service/src/main/java/org/jboss/aerogear/unifiedpush/service/util/FCMTopicManager.java#L87