UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '+2xTUh/osEUqy+cPb/mLq8n2JOvN39vmSKe41jAYxOs=' 
WHERE 
  key_id = '4691763e7d325706d4ad67e5c38e5540a6c0c95f361400e33f5012eb0e8199d5' 
  AND (
    token = '+2xTUh/osEUqy+cPb/mLq8n2JOvN39vmSKe41jAYxOs=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )