curl --request GET \
  --url https://api.stockly.com/v1/users/{userId} \
  --header 'x-api-key: <api-key>'

{
  "user": {
    "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
    "appId": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
    "email": "<string>",
    "externalId": "<string>",
    "createdAt": "2023-11-07T05:31:56Z"
  }
}