curl --request GET \
  --url https://{baseurl}/api/v1/management/contact-attribute-keys/{contactAttributeKeyId} \
  --header 'x-api-key: <x-api-key>'

{
  "data": {
    "createdAt": "2023-11-07T05:31:56Z",
    "description": "<string>",
    "environmentId": "<string>",
    "id": "<string>",
    "isUnique": true,
    "key": "<string>",
    "name": "<string>",
    "type": "<string>",
    "updatedAt": "2023-11-07T05:31:56Z"
  }
}