UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'MFujVjePGabHlz5ZSD8kvG5fl5IqLg2zM5PI9rfCTHI=' 
WHERE 
  key_id = '1815c6480c2d4ec25643237d736ae274372ba5918466d0d6c0340935fe21ffc9' 
  AND (
    token = 'MFujVjePGabHlz5ZSD8kvG5fl5IqLg2zM5PI9rfCTHI=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )