CPushManager::DeleteFromQueueBySubTag

static function DeleteFromQueueBySubTag($userId, $tag, $appId = self::DEFAULT_APP_ID)
{
	global $DB;
	if ($tag == '' || intval($userId) == 0)
	{
		return false;
	}

	$strSql = "DELETE FROM b_pull_push_queue WHERE USER_ID = " . intval($userId) . " AND SUB_TAG = '" . $DB->ForSQL($tag) . "'";
	$DB->Query($strSql, false, "File: " . __FILE__ . "
Line: " . __LINE__);

	BitrixPullPush::add($userId, [
		'module_id' => 'pull',
		'push' => [
			'advanced_params' => [
				"notificationsToCancel" => [$tag],
			],
			'send_immediately' => 'Y',
			'app_id' => $appId
		]
	]);

	return true;
}