{
  "metafields": {
    "created_at": "2011-10-20T14:05:13-04:00",
    "updated_at": "2011-10-20T14:05:13-04:00",
    "namespace": "contact",
    "id": 721389482,
    "value": "123@example.com",
    "description": null,
    "key": "email",
    "value_type": "string"
  }
}