curl --request GET \
  --url https://api.cloud.flexprice.io/v1/entity-integration-mappings \
  --header 'x-api-key: <api-key>'

{
  "items": [
    {
      "created_at": "<string>",
      "created_by": "<string>",
      "entity_id": "<string>",
      "entity_type": "customer",
      "environment_id": "<string>",
      "id": "<string>",
      "provider_entity_id": "<string>",
      "provider_type": "<string>",
      "status": "published",
      "tenant_id": "<string>",
      "updated_at": "<string>",
      "updated_by": "<string>"
    }
  ],
  "pagination": {
    "limit": 123,
    "offset": 123,
    "total": 123
  }
}