UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'KUUtwzKxjqUZ+y5p2h5QgnBUCStCPAAQSacqWwiRefU=' 
WHERE 
  key_id = '6b5e077a3bb5d368c7243d7caa8697048e5bcecc10390caa843a89ede600233f' 
  AND (
    token = 'KUUtwzKxjqUZ+y5p2h5QgnBUCStCPAAQSacqWwiRefU=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )