Input Dictionary type for a webservicequery()

In my webservice I have input data is like mentioned below.

 -service(service)

     -request(request)

          -ws-input-header(ws-input-header)

                 calssname : "Sample" [text]

                  systemname : "myorg" [text]

          -ws-input(ws-input)

                 -data-cdt(data-cdt)

                            input1 : "133" [text]

                            input2 : "Test Data" [text]

I am having a service which accepting the input in the above format. We are able to call it successfully from "Call Web Service" smart service. But I want to call this through "webservicequery()".   I know it is not best practice to use nested CDT's. But it is my requirement.

Can anybody suggest the way to call this service from SAIL. 

Thanks in Advance