curl --request GET \
  --url https://app.aegister.com/api/v1/organizations/{organizationid}/users \
  --header 'X-Aegister-Token: <api-key>'

{
  "error": 0,
  "messages": "<array>",
  "total": 1,
  "data": [
    {
      "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
      "username": "jsmith@example.com",
      "email": "jsmith@example.com",
      "first_name": "<string>",
      "last_name": "<string>"
    }
  ]
}