curl --request POST \
  --url http://localhost:8080/miniapp/subscription/tariffs \
  --header 'Content-Type: application/json' \
  --data '
{
  "initData": "<string>"
}
'

{
  "success": true,
  "sales_mode": "tariffs",
  "tariffs": [
    {
      "id": 123,
      "name": "<string>",
      "traffic_limit_gb": 123,
      "traffic_limit_label": "<string>",
      "device_limit": 123,
      "servers_count": 123,
      "description": "<string>",
      "tier_level": 1,
      "is_unlimited_traffic": false,
      "servers": [
        {
          "uuid": "<string>",
          "name": "<string>"
        }
      ],
      "periods": [
        {
          "days": 123,
          "label": "<string>",
          "price_kopeks": 123,
          "price_label": "<string>",
          "months": 123,
          "price_per_month_kopeks": 123,
          "price_per_month_label": "<string>",
          "original_price_kopeks": 123,
          "original_price_label": "<string>",
          "discount_percent": 0
        }
      ],
      "is_current": false,
      "is_available": true,
      "switch_cost_kopeks": 123,
      "switch_cost_label": "<string>",
      "is_upgrade": true,
      "is_switch_free": true,
      "is_daily": false,
      "daily_price_kopeks": 0,
      "daily_price_label": "<string>"
    }
  ],
  "current_tariff": {
    "id": 123,
    "name": "<string>",
    "traffic_limit_gb": 123,
    "traffic_limit_label": "<string>",
    "device_limit": 123,
    "servers_count": 123,
    "description": "<string>",
    "tier_level": 1,
    "is_unlimited_traffic": false,
    "monthly_price_kopeks": 0,
    "traffic_topup_enabled": false,
    "traffic_topup_packages": [
      {
        "gb": 123,
        "price_kopeks": 123,
        "price_label": "<string>",
        "original_price_kopeks": 123,
        "original_price_label": "<string>",
        "discount_percent": 0
      }
    ],
    "max_topup_traffic_gb": 0,
    "available_topup_gb": 123,
    "is_daily": false,
    "daily_price_kopeks": 0,
    "daily_price_label": "<string>"
  },
  "balance_kopeks": 0,
  "balance_label": "<string>",
  "promo_group": {
    "id": 123,
    "name": "<string>",
    "server_discount_percent": 0,
    "traffic_discount_percent": 0,
    "device_discount_percent": 0,
    "period_discounts": {},
    "apply_discounts_to_addons": true
  }
}