UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '2xM1gBkj1vT7YIrvSK2AQESEo0NZxPNf9C7uJZMT9+Y=' 
WHERE 
  key_id = '85440d24dcacb6a3fef09be2678c27631f7f49a79a6a1c0910f6c826321a54b9' 
  AND (
    token = '2xM1gBkj1vT7YIrvSK2AQESEo0NZxPNf9C7uJZMT9+Y=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )