curl --request GET \
  --url https://api.example.com/api/admin/users \
  --header 'Authorization: Bearer <token>'

{
  "users": [
    {
      "id": 123,
      "username": "<string>",
      "is_admin": true,
      "created_at": "<string>",
      "updated_at": "<string>"
    }
  ],
  "total": 123,
  "page": 123,
  "size": 123,
  "pages": 123
}