lwp - 名前付き引数なしの REST HTTP DELETE

Question

私はやってみたいです：

 curl -X DELETE -d '{"name":"flowx"}' 'http://somewhere/wm/staticflowentrypusher/json'

パールでは：

 my $browser = LWP::UserAgent->new;
 my $url = 'http://somewhere/wm/staticflowentrypusher/json';
 $browser->delete($url, '{"name":"flowx"}');

しかし、私は得る：

 Illegal field name '{"name":"flowx"}' at /home/user/perl5/lib/perl5/HTTP/Request/Common.pm line 115