Subscription Offer

{
    "id": "string",
    "offer_type": "FIRST_TIME",
    "discount_type": "FIXED",
    "discount_value": 0,
    "valid_from": "string",
    "valid_until": "string",
    "applies_to_new_users_only": true,
    "applies_permanently": true,
    "subscription_id": "string"
}