android中如何获取到环信客服的昵称？

看到Log中打印了如下json：chat listener receive msg from:admin@easemob.com body:{"from":"chichi","to":"v2","bodies":[{"msg":"ihikuyhiu","type":"txt"}],"ext":{"weichat":{"originType":null,"visitor":null,"agent":{"userNicename":"刘杰","avatar":null},"queueId":null,"queueName":null,"agentUsername":null,"ctrlType":null,"ctrlArgs":null,"event":null}}}
我需要获取到客服昵称，也就是userNicename：刘杰，但是不知道这段话是在哪里打印出来的。求大神解答