Passing xml or json in the body of a GET request

Does soapUI or soapUI Pro support passing xml or json in the body of a GET request? If not, does anyone know how it can be accomplished using soapUI?
The API I'm testing supports the use of xml or json in the body of a GET request to provide filtering. For example:

http://mytest.testing.com/test/apis/things => returns all details about all things

If {"color" : "blue"} is passed in the body of the GET, it returns all details about all things that contain the string 'blue' in the color

Thanks