有没有一种方法可以增加时间通过邮递员发送fcm通知？

Question

有没有一种方法可以增加时间通过邮递员发送fcm通知

{
 "condition" : "'Hi' in topics",
**"isScheduled" : "true",
  "scheduledTime" : "2019-1-2 11:40:00",**
"notification" : {
  "body" : "#1",
  "title" : "hello"
},
"priority": "high",
"data" : {
"click_action":"NOTIFICATION_CLICK",
  "id" : "#1",
  "title" : "hello 1 2 3"
} 
}