curl --request GET \
  --url https://api.halth.com/v1/businesses/{businessId}/billing/subscriptions

{
  "items": [
    {
      "id": "<string>",
      "type": "usage_based",
      "createdAt": "2023-11-07T05:31:56Z",
      "defaultPaymentMethod": {
        "id": "<string>",
        "brand": "<string>",
        "last4": "<string>",
        "customerId": "<string>"
      }
    }
  ],
  "page": 1,
  "limit": 10,
  "totalItems": 100,
  "totalPages": 10
}