Array ( [title] => Test server Titile [is_background] => [message] => Test server message [image] => https://api.androidhive.info/images/minion.jpg [fromSource] => [payload] => Array ( [team] => MizCom Team [score] => 1.0 ) [url] => [tag] => [time] => [timestamp] => 2023-02-07 4:03:07 ) Response: {"multicast_id":7711311362139919703,"success":0,"failure":1,"canonical_ids":0,"results":[{"error":"NotRegistered"}]}