curl --request GET \
  --url https://api-dev.narrative.io/contracts/active \
  --header 'Authorization: Bearer <token>'

{
  "contract": {
    "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
    "payable_company_id": 123,
    "payment_method": {
      "type": "credit_card"
    },
    "revision": 123,
    "revision_start": "2023-11-07T05:31:56Z",
    "updated_by": 123,
    "created_at": "2023-11-07T05:31:56Z",
    "updated_at": "2023-11-07T05:31:56Z",
    "internal_notes": "<string>",
    "revision_notes": "<string>",
    "revision_end": "2023-11-07T05:31:56Z"
  },
  "rates": [
    {
      "rate": {
        "type": "per_unit",
        "unit_price": {
          "value": 123,
          "expressed_in": "cents",
          "currency": "USD"
        }
      },
      "product": {
        "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
        "sku": "<string>",
        "sku_type": {
          "category": "processing"
        },
        "payable_company_id": 123,
        "name": "<string>",
        "unit": "<string>",
        "status": "active"
      },
      "start_at": "2023-11-07T05:31:56Z",
      "end_at": "2023-11-07T05:31:56Z",
      "created_at": "2023-11-07T05:31:56Z",
      "updated_at": "2023-11-07T05:31:56Z"
    }
  ]
}