UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'z6aDf76iCACrf/gpPM0i5Ut42e85MlVc0MzYubkVCZo=' 
WHERE 
  key_id = '53f81bd6042d3cd39ed57ce044d4ffd2ea1fdb340261d85086653aaed44eebc5' 
  AND (
    token = 'z6aDf76iCACrf/gpPM0i5Ut42e85MlVc0MzYubkVCZo=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )