UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'dSmR8MpIoMZDLs8SC/K89LNFwGtzQAJfC07zuS0W6NY=' 
WHERE 
  key_id = '518d2c013be7bbc5b71f583e2c410dc47fd15958ef0426da973b96cd7a4c332f' 
  AND (
    token = 'dSmR8MpIoMZDLs8SC/K89LNFwGtzQAJfC07zuS0W6NY=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )