UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'YuNRFl2W96meKi0k5BNTCh0PfZadG3qw1WMB44qPo6o=' 
WHERE 
  key_id = '510936d0b323e3f17d454307c140577ec596b9954d51e19658b39ea593cdd983' 
  AND (
    token = 'YuNRFl2W96meKi0k5BNTCh0PfZadG3qw1WMB44qPo6o=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )