UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'KX755xXdNTSMQFBjiBnsawIhhXzAbFoxxKdwUUzZaSo=' 
WHERE 
  key_id = '6dc46d80ef95dd18343df31f259345570e9ecf5453a7a8a0f2784465646f0db2' 
  AND (
    token = 'KX755xXdNTSMQFBjiBnsawIhhXzAbFoxxKdwUUzZaSo=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )