Invalid JSON skills of Alice?

Question

JSON

Good day,
When testing Alice's skill on webhook url - unpacked with NOW.
An error occurs with an invalid jason, although I did everything according to the instructions with Yandex Dialogs
Who can tell me how to fix it?
Response:
null
Request:

{
  "meta": {
    "client_id": "ru.yandex.searchplugin/7.16 (none none; android 4.4.2)", - выделяет красным
    "interfaces": {
      "account_linking": {},
      "payments": {},
      "screen": {}
    },
    "locale": "ru-RU",  - выделяет красным
    "timezone": "UTC"  - выделяет красным
  },
  "request": {
    "command": "",
    "nlu": {
      "entities": [],
      "tokens": []
    },
    "original_utterance": "",  - выделяет красным
    "type": "SimpleUtterance"  - выделяет красным
  },
  "session": {
    "message_id": 0,
    "new": true,
    "session_id": "34eaca47-99284438-f1bacfbe-9f73b5c3",  - выделяет красным
    "skill_id": "5147e032-2746-4547-a263-3bc6caa2653f",  - выделяет красным
    "user_id": "33495FE46BD488029597257DD741396DF554D5EA6A23F24923AA2E3E6C05C3AE"  - выделяет красным
  },
  "version": "1.0"  - выделяет красным