UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '6ATXZdOK8FTtU+7kzijLnCbE6uuxcwYXlO0C5MYGxZM=' 
WHERE 
  key_id = '657a4c2499352309bd8d0c474f0b6d6ce51fb259115b1dfd7632c0fc07ef08b1' 
  AND (
    token = '6ATXZdOK8FTtU+7kzijLnCbE6uuxcwYXlO0C5MYGxZM=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )