解析key为json字符串时，抛出JSON keys must be strings 异常

跟客户对接，用json格式传输数据。

客户传过来的json串如这种：{"failedMap":{"{"content":"test 1","mobileNum":"13548546858","refer":"test","time":1457436775000,"token":-2452365047050524154}":"ERROR"},"successMap":{"{"content":"test 1","mobileNum":"13548546850","refer":"test","time":1457436774000,"token":-144685337407813035}":"SUCCESS","{"content":"test 1","mobileNum":"13548546853","refer":"test","time":1457436775000,"token":9148477391415919012}":"SUCCESS"}}

我引用 json-lib-2.3-jdk15.jar 中JSONObject 进行解析，抛出JSON keys must be strings 异常，我在下面贴出解析方式和异常详细信息