Jmeter: Reuse and Change Json Response as Body for next Request

I want to test a Rest Webservice with JMeter. I perform a GET request, which returns JSON data. I want to change one attribute and then send it again in a PUT request. Is there a way to do this in Jmeter?

I already extracted the JSON response with a postprocessor, and I can use this response as an input for the next request. But how can I manipulate it? Any ideas?