curl --request DELETE \
  --url https://api.altostrat.io/radius/users/{userId} \
  --header 'Authorization: Bearer <token>'

{
  "type": "authentication_error",
  "code": "api_key_invalid",
  "message": "You did not provide a valid API key. You must provide your API key in the Authorization header.",
  "doc_url": "https://docs.altostrat.io/errors/api_key_invalid"
}