curl --request POST \
  --url http://localhost:8080/menu-layout/import \
  --header 'Content-Type: application/json' \
  --data '
{
  "version": 123,
  "rows": [
    {
      "id": "<string>",
      "buttons": [
        "<string>"
      ],
      "conditions": {
        "has_active_subscription": true,
        "subscription_is_active": true,
        "has_traffic_limit": true,
        "is_admin": true,
        "is_moderator": true,
        "referral_enabled": true,
        "contests_visible": true,
        "support_enabled": true,
        "language_selection_enabled": true,
        "happ_enabled": true,
        "simple_subscription_enabled": true,
        "show_trial": true,
        "show_buy": true,
        "has_saved_cart": true,
        "min_balance_kopeks": 1,
        "max_balance_kopeks": 1,
        "min_registration_days": 1,
        "max_registration_days": 1,
        "min_referrals": 1,
        "has_referrals": true,
        "promo_group_ids": [
          "<string>"
        ],
        "exclude_promo_group_ids": [
          "<string>"
        ],
        "has_subscription_days_left": 1,
        "max_subscription_days_left": 1,
        "is_trial_user": true,
        "has_autopay": true
      },
      "max_per_row": 2
    }
  ],
  "buttons": {},
  "merge_mode": "replace"
}
'

{
  "success": true,
  "imported_rows": 123,
  "imported_buttons": 123,
  "warnings": [
    "<string>"
  ]
}