Tag: salt/key
        Data:
        {'_stamp': '2014-05-20T22:45:04.345583',
         'act': 'delete',
         'id': 'compute.home',
         'result': True}

def process_key_event(self, event_data):
        '''
        Tag: salt/key
        Data:
        {'_stamp': '2014-05-20T22:45:04.345583',
         'act': 'delete',
         'id': 'compute.home',
         'result': True}
        '''

        tag = event_data['tag']
        event_info = event_data['data']

        if event_info['act'] == 'delete':
            self.minions.pop(event_info['id'], None)
        elif event_info['act'] == 'accept':
            self.minions.setdefault(event_info['id'], {})

        self.publish_minions()