curl --request PUT \
  --url https://api.example.com/cabinet/admin/landings/{landing_id} \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "slug": "<string>",
  "title": {},
  "subtitle": {},
  "is_active": true,
  "features": [
    {
      "icon": "",
      "title": {},
      "description": {}
    }
  ],
  "footer_text": {},
  "allowed_tariff_ids": [
    123
  ],
  "allowed_periods": {},
  "payment_methods": [
    {
      "method_id": "<string>",
      "display_name": "<string>",
      "description": "<string>",
      "icon_url": "<string>",
      "sort_order": 0,
      "min_amount_kopeks": 123,
      "max_amount_kopeks": 123,
      "currency": "<string>",
      "return_url": "<string>",
      "sub_options": {}
    }
  ],
  "gift_enabled": true,
  "custom_css": "<string>",
  "meta_title": {},
  "meta_description": {},
  "discount_percent": 50,
  "discount_overrides": {},
  "discount_starts_at": "2023-11-07T05:31:56Z",
  "discount_ends_at": "2023-11-07T05:31:56Z",
  "discount_badge_text": {},
  "background_config": {}
}
'

{
  "id": 123,
  "slug": "<string>",
  "title": {},
  "is_active": true,
  "display_order": 123,
  "features": [
    {
      "icon": "",
      "title": {},
      "description": {}
    }
  ],
  "allowed_tariff_ids": [
    123
  ],
  "allowed_periods": {},
  "payment_methods": [
    {
      "method_id": "<string>",
      "display_name": "<string>",
      "description": "<string>",
      "icon_url": "<string>",
      "sort_order": 0,
      "min_amount_kopeks": 123,
      "max_amount_kopeks": 123,
      "currency": "<string>",
      "return_url": "<string>",
      "sub_options": {}
    }
  ],
  "gift_enabled": true,
  "subtitle": {},
  "footer_text": {},
  "custom_css": "<string>",
  "meta_title": {},
  "meta_description": {},
  "discount_percent": 123,
  "discount_overrides": {},
  "discount_starts_at": "2023-11-07T05:31:56Z",
  "discount_ends_at": "2023-11-07T05:31:56Z",
  "discount_badge_text": {},
  "background_config": {},
  "created_at": "2023-11-07T05:31:56Z",
  "updated_at": "2023-11-07T05:31:56Z"
}