Here's what an entry looks like in the log with debug set. See my original post for what the actaul syslog message looks like for a similar event.
2013-07-24 09:30:59,936 DEBUG zen.zensyslog: Queued event (total of 2) {'count': 2, 'rcvtime': 1374672659.936806, 'firstTime': 1374672659.113021, 'severity': 4, 'facility': None, 'eventClassKey': u'input', 'component': 'input', 'agent': 'zensyslog', 'summary': 'in:ether1 out:(none), src-mac 00:01:5c:50:b2:41, proto UDP, 96.120.28.193:67->255.255.255.255:68, len 328', 'priority': 3, 'manager': 'zenoss.comp44.com', 'eventGroup': 'syslog', 'device': '10.0.71.1', 'lastTime': 1374672659.932637, 'ipAddress': '10.0.71.1', 'monitor': 'localhost'}