UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '0WyTe9oHbQp73IeKDEH7+XEV12vpRclPrOvYBibK9/A=' 
WHERE 
  key_id = 'b286acb91ff0c904bca02b96074cbb2280f011a5c1e483501fa8d9502a1d300f' 
  AND (
    token = '0WyTe9oHbQp73IeKDEH7+XEV12vpRclPrOvYBibK9/A=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )