I am not able to get push notification in IOS

I can not get push whether app in background or foreground
I can get FCM_Token perfectly but when I try to send via firebase console or from api rest client I just get a success response but not any push in real device
{ "multicast_id": 5795576345818531662, "success": 1, "failure": 0, "canonical_ids": 0, "results": [ { "message_id": "0:1542883228414419%d4db7150d4db7150" } ] }