How to get updated response object from decision manager to Java application

I'm using JBOSS EAP and Decision Manager along with spring boot application. I'm new to these BRMS systems. I want to execute some rules in decision manager using REST API calls and I'm giving an object as input. After executing rules I want that object in return and it should be updated if all rule conditions are satisfied. Is it possible to use same object for request and response ?Currently I have used ServiceResponse to get the response. How to extract my input data object from this response.