UPDATE 
  q_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'RQXdxWquacx6IEF8MzH088+OagdBjfQeWzuglTJ9Odc=' 
WHERE 
  key_id = '7942e4542194b482560f0e3b8a93a1d62567c0cce2a92f43aeb1fd694aa78548' 
  AND (
    token = 'RQXdxWquacx6IEF8MzH088+OagdBjfQeWzuglTJ9Odc=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )