Help to provide json from nodered to HA

Configuration
1

Hello! I’m really newbie in HA and nodered and trying to send some Json from Nodered to get push notify on my android tv’s.
In HA i did next:

  1. I’ve created group file with these parameters:
Спойлер 
notify:
 - name: all_tv_devices
   platform: group
   services:
     - service: androidtv_guest
       data: 
         message: 
     - service: androidtv_bedroom
       data: 
         message:

2.File with services

Спойлер 
rest_command:
  androidtv_guest:
    url: http://192.168.88.115:7979/notify
    content_type: 'application/json'
    verify_ssl: false
    method: 'post'
    timeout: 20
    payload: >
      }}
      }
  androidtv_bedroom:
    url: http://192.168.88.123/7979/notify
    content_type: 'application/json'
    verify_ssl: false
    method: 'post'
    timeout: 20
    payload: >

And in nodered i created call_service with these parameters.

image
image495×627 15.8 KB

Code in data field:

Спойлер 
{
    "data": {
        "duration": 10,
        "position": 0,
        "title": "Уведомление от домофона",
        "titleColor": "#50BFF2",
        "titleSize": 10,
        "message": "Кто-то звонит в домофон",
        "messageColor": "#fbf5f5",
        "messageSize": 14,
        "backgroundColor": "#0f0e0e",
        "media": {
            "image": {
                "uri": "https://v-dver.ru/wp-content/uploads/2016/10/blok-vyzova-eltis-dp300-rdc16-e1477747891210.jpg",
                "width": 580
            }
        }
    }
}

When i trying to execute it, HA answers “Call-service API error. Error Message: required key not provided @ data[‘message’]”

Please help me to understand these part of integration.