UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Tx9ud/EeHJscgnmLbcRIu8Q4tDyA//iCi7msEgntIfg=' 
WHERE 
  key_id = '18a03d35b1f731082da7f31e873fb96eb3864f5c0b73daf0bb0f171340ed48d6' 
  AND (
    token = 'Tx9ud/EeHJscgnmLbcRIu8Q4tDyA//iCi7msEgntIfg=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )