UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'L2jJ3r/kWvngf39TZSyPnL9n4smORTgu1NYMauBgruM=' 
WHERE 
  key_id = '49840053d12d36b14adc8d2e24de8fb7436379601bfac062daf4efd95d761197' 
  AND (
    token = 'L2jJ3r/kWvngf39TZSyPnL9n4smORTgu1NYMauBgruM=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )