GET /topic/%23%EC%88%A0_%EB%A7%88%EC%85%94%EB%B3%B8_%EC%82%AC%EB%9E%8C%EC%9D%80_%EB%8B%A4_%EB%8C%80%EB%8B%B5%ED%95%98%EA%B8%B0_%EC%B7%A8%ED%95%98%EB%A9%B4_%EC%96%B4%EB%96%BB%EA%B2%8C_%EB%90%98%EC%8B%9C%EB%82%98%EC%9A%94