UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '+4WdxwuljTkaC6nIQUXwC2qYYzjlK1tqOGUN/T8OcUQ=' 
WHERE 
  key_id = '8b51f3a8480a9daeac74652223d5f293a830df963fbb75be2f33899e91edabbe' 
  AND (
    token = '+4WdxwuljTkaC6nIQUXwC2qYYzjlK1tqOGUN/T8OcUQ=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )