SendPushNotificationJob.perform_later(notification:, target:) / perform_now(...).kind and ids.{
"notification": {
"title": "string",
"body": "string",
"data": {
"property1": "string",
"property2": "string"
}
},
"target": {
"user_id": 42,
"user_ids": [
1,
2,
3
],
"fcm_token": "string"
}
}