curl --request GET \
  --url http://127.0.0.1:8080/v1/c/entitlement/{customer_id}/access \
  --header 'wb-key: <api-key>'

{
  "contract": {
    "contract_id": "Cust_c40bea18-c0c9-44b1-bd0c-43f5283e1670",
    "status": "active"
  },
  "customer": {
    "status": "active"
  },
  "plan": {
    "entitlement_details": {
      "pricing_strategy": "flat"
    },
    "features": [
      {
        "entitlement_details": {
          "pricing_strategy": "flat"
        },
        "name": "<string>",
        "original_feature_id": "Cust_c40bea18-c0c9-44b1-bd0c-43f5283e1670",
        "slug": "<string>"
      }
    ],
    "name": "<string>",
    "original_plan_id": "Cust_c40bea18-c0c9-44b1-bd0c-43f5283e1670",
    "slug": "<string>"
  }
}