badsignatureexception.php

См. документацию.

<?php
namespace Bitrix\Main\Security\Sign;
 
use Bitrix\Main\SystemException;

class BadSignatureException
    extends SystemException
{
    public function __construct($message = "", \Throwable $previous = null)
    {
        parent::__construct($message, 140, '', 0, $previous);
    }
}