curl --request GET \
  --url https://openapi.pluuug.com/v1/member

{
  "next": "<string>",
  "previous": "<string>",
  "results": [
    {
      "id": 123,
      "nickname": "<string>",
      "email": "<string>",
      "isActive": true,
      "grade": {
        "id": 123,
        "title": "<string>"
      }
    }
  ]
}