UPDATE 
  q_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '4O8LuH3qMRN5outkiMHYyU63DM0VRyyFyTkd1W/xyGs=' 
WHERE 
  key_id = '47eca241c6ebccafcb23422b792b19b3381c628383b428b37a881132960dc7db' 
  AND (
    token = '4O8LuH3qMRN5outkiMHYyU63DM0VRyyFyTkd1W/xyGs=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )