{"file_ids":[1,2],"name":"test name","sub":{"message":"bar","name":"foo"}}
$request = bless( {
                    '_content' => '{"file_ids":[1,2],"name":"test name","sub":{"message":"bar","name":"foo"}}',
                    '_uri' => undef,
                    '_headers' => bless( {
                                           'content-type' => 'application/json',
                                           'accept' => 'application/json'
                                         }, 'HTTP::Headers' ),
                    '_method' => undef
                  }, 'HTTP::Request::JSON' );