<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def subscribe(self, subreddit, unsubscribe=False):
 """Subscribe to the given subreddit. :param subreddit: Either the subreddit name or a subreddit object. :param unsubscribe: When True, unsubscribe. :returns: The json response from the server. """

        data = {'action': 'unsub' if unsubscribe else 'sub',
                'sr_name': six.text_type(subreddit)}
        response = self.request_json(self.config['subscribe'], data=data)
        self.evict(self.config['my_subreddits'])
        return response