UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'PXu0rJhCOUDHgJYqo0zCnQt8nEkStdqDxx6v/+Zf3vc=' 
WHERE 
  key_id = '321a08494b3eedd075ef06996352b65437fa503fef517fd4e1bc6c003f82562d' 
  AND (
    token = 'PXu0rJhCOUDHgJYqo0zCnQt8nEkStdqDxx6v/+Zf3vc=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )