新增okx ws订阅 bug修改

exchanges/src/okx_swap_ws.rs

@@ -303,7 +303,7 @@ impl OkxSwapWs {
         }else if json_value.get("data").is_some(){
             let data =  json_value["data"].clone();
             res_data.code = 200;
-            res_data.data = data;
+            res_data.data = json_value.clone();
             if channel.contains("books5") {
                 res_data.channel = "futures.order_book".to_string(); //深度
             } else if channel.contains("candle1s") {