UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'aNew6w396MykEbl/Bl1P8KY43xXK6ehFTRyAePW+ZeA=' 
WHERE 
  key_id = 'df47033fc22f8ad580899c0ea97bc9725624cd9c0178b83580ccf86449834181' 
  AND (
    token = 'aNew6w396MykEbl/Bl1P8KY43xXK6ehFTRyAePW+ZeA=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )