subscr_edit.php

См. документацию.

<?php
require $_SERVER['DOCUMENT_ROOT'] . '/bitrix/header.php';
/* @var CMain APPLICATION */
$APPLICATION->SetTitle('');
?><?php $APPLICATION->IncludeComponent(
    'bitrix:subscribe.edit',
    '',
    [
        'SHOW_HIDDEN' => 'N',
        'ALLOW_ANONYMOUS' => 'Y',
        'SHOW_AUTH_LINKS' => 'Y',
        'CACHE_TIME' => '3600',
        'SET_TITLE' => 'Y'
    ]
);?><?php require $_SERVER['DOCUMENT_ROOT'] . '/bitrix/footer.php';