curl --request POST \
  --url https://api.metronome.com/v1/contracts/getContractRateSchedule \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '{
  "customer_id": "13117714-3f05-48e5-a6e9-a66093f13b4d",
  "contract_id": "d7abd0cd-4ae9-4db7-8676-e986a4ebd8dc",
  "at": "2020-01-01T00:00:00.000Z",
  "selectors": [
    {
      "product_id": "d6300dbb-882e-4d2d-8dec-5125d16b65d0",
      "partial_pricing_group_values": {
        "region": "us-west-2",
        "cloud": "aws"
      }
    }
  ]
}'

{
  "next_page": "<string>",
  "data": [
    {
      "rate_card_id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
      "product_id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
      "product_name": "<string>",
      "product_tags": [
        "<string>"
      ],
      "product_custom_fields": {},
      "starting_at": "2023-11-07T05:31:56Z",
      "ending_before": "2023-11-07T05:31:56Z",
      "entitled": true,
      "pricing_group_values": {},
      "list_rate": {
        "rate_type": "FLAT",
        "price": 123,
        "custom_rate": {},
        "use_list_prices": true,
        "quantity": 123,
        "is_prorated": true,
        "tiers": [
          {
            "size": 123,
            "price": 123
          }
        ],
        "pricing_group_values": {},
        "credit_type": {
          "name": "<string>",
          "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a"
        }
      },
      "override_rate": {
        "rate_type": "FLAT",
        "price": 123,
        "custom_rate": {},
        "use_list_prices": true,
        "quantity": 123,
        "is_prorated": true,
        "tiers": [
          {
            "size": 123,
            "price": 123
          }
        ],
        "pricing_group_values": {},
        "credit_type": {
          "name": "<string>",
          "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a"
        }
      },
      "commit_rate": {
        "rate_type": "FLAT",
        "price": 123,
        "tiers": [
          {
            "size": 123,
            "price": 123
          }
        ]
      },
      "billing_frequency": "MONTHLY"
    }
  ]
}