curl --request GET \
  --url http://localhost:8080/pinned-messages

{
  "items": [
    {
      "id": 123,
      "content": "<string>",
      "send_before_menu": true,
      "send_on_every_start": true,
      "is_active": true,
      "created_at": "2023-11-07T05:31:56Z",
      "media_type": "<string>",
      "media_file_id": "<string>",
      "created_by": 123,
      "updated_at": "2023-11-07T05:31:56Z"
    }
  ],
  "total": 123,
  "limit": 123,
  "offset": 123
}