List DFY Subscriptions

{
    "subscriptions": [
        {
            "subscription_id": "665f1a2b3c4d5e6f7a8b9c11",
            "workspace_id": "65099a0dd96fae8ab61130c0",
            "service": "DFY_EMAIL",
            "order_id": "ORD-Ab12Cd34Ef",
            "provider": "GOOGLE_WORKSPACE",
            "display_products": [
                {
                    "name": "john@acme-growth.com",
                    "first_name": "John",
                    "last_name": "Doe",
                    "persona": "John Doe",
                    "provider": "GOOGLE_WORKSPACE",
                    "price": "3.50",
                    "currency": "USD"
                }
            ],
            "emails": [
                "john@acme-growth.com",
                "john.doe@acme-growth.com",
                "john.d@acme-growth.com"
            ],
            "email_prefixes": [
                "john",
                "john.doe",
                "john.d"
            ],
            "stripe_sub_status": "ACTIVE",
            "status": "ACTIVE",
            "period_st": "2026-07-01T00:00:00.000Z",
            "period_end": "2026-08-01T00:00:00.000Z",
            "next_billing_dt": "2026-08-01T00:00:00.000Z",
            "valid_till": "2026-08-11T00:00:00.000Z",
            "created_at": "2026-07-01T09:30:00.000Z",
            "modified_at": "2026-07-01T09:31:00.000Z",
            "dfy_domain_subscription_id": "665f1a2b3c4d5e6f7a8b9c12",
            "dfy_email_subscription_id": ""
        }
    ]
}