GET /topic/%25231rt%25EC%25B5%259C%25EC%2595%25A0%25EC%25BA%2590_2rt%25EC%25B0%25A8%25EC%2595%25A0%25EC%25BA%2590_3rt%25EC%2582%25BC%25EC%2595%25A0%25EC%25BA%2590_4rt%25EC%2582%25AC%25EC%2595%25A0%25EC%25BA%2590_5rt