title: Can you expire a key value pair for a hashKey in Redis
body: <p>I want to expire a particular key/value pair set in a hashKey in redis. But redis expires the whole hashKey with all keyValue pairs inside lost. For example i just want to remove Key:666 from seqNu. Using jedis.setex is other option but u cant set a hashKey in it. </p>
  
  <pre><code>jedis.hset("seqNu","666",System.currentTimeMillis()+"");
  jedis.hset("seqNu","777",System.currentTimeMillis()+"");
  jedis.expire("seqNu", 20); // This expires the whole HashKey: seqNu after 20 seconds 
  </code></pre>