UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'xkWEkmMSq6MXUJ1x0VnxP2loAfJOARM6snJcVcKDEKw=' 
WHERE 
  key_id = '855545d1a6f715387e94418d47e9a475b902d1058a24b5968711be98d58de1c5' 
  AND (
    token = 'xkWEkmMSq6MXUJ1x0VnxP2loAfJOARM6snJcVcKDEKw=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )