此处参考链接

{
  "topic": "topic_test",
  "message": {
    "data": {
      "key": "some_value"
    },
    "notification": {
      "body": "description ~",
      "title": "title !"
    }
  },
  "options": {
    "mutableContent": true,
    "contentAvailable": true,
    "apnsPushType": "background"
  }
}