来自curl请求的InvalidRegistration FCM响应

Question

我正在尝试向Android应用程序发送推送通知，但我总是收到错误说＆＃34; InvalidRegistration＆＃34;，我尝试在stackoverflow上发布了很多解决方案并搜索了这么多但没有进展！

这是我使用的curl命令：

$ curl -H "Content-type: application/json" -H "Authorization:key=<SERVER KEY>"  -X POST -d '{ "data": { "score": "5x1","time": "15:10"}, "to" : "<APP KEY>"}' https://fcm.googleapis.com/fcm/send

以及回复：

  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
100   216    0   122  100    94    122     94  0:00:01 --:--:--  0:00:01   445{"multicast_id":7321962376365265310,"success":0,"failure":1,"canonical_ids":0,"results":[{"error":"InvalidRegistration"}]}