How should I decode following Json serialized map data by used EventDescription.
{"offsetTable":{{"brokerName":"testbrokerUDP-02","queueId":0,"topic":"vincent_topic"}:0,{"brokerName":"testbrokerUDP-02","queueId":1,"topic":"vincent_topic"}:0,{"brokerName":"testbrokerUDP-02","queueId":2,"topic":"vincent_topic"}:0,{"brokerName":"testbrokerUDP-02","queueId":3,"topic":"vincent_topic"}:0,{"brokerName":"testbrokerUDP-02","queueId":4,"topic":"vincent_topic"}:0,{"brokerName":"testbrokerUDP-02","queueId":5,"topic":"vincent_topic"}:0,{"brokerName":"testbrokerUDP-02","queueId":6,"topic":"vincent_topic"}:0,{"brokerName":"testbrokerUDP-02","queueId":7,"topic":"vincent_topic"}:0}}