app-api/app/Events/CancelOrderEvent.php

<?php

namespace App\Events;

use Illuminate\Support\Facades\Log;

class CancelOrderEvent extends Event
{

    /**
     * Create a new event instance.
     *
     * @return void
     */
    public $data;
    public function __construct($data)
    {
        $this->data=$data;
    }
}