TasksApplication/app/Listeners/SendEmailNotification.php

<?php

namespace App\Listeners;

use Illuminate\Auth\Events\Login;
use Illuminate\Contracts\Queue\ShouldQueue;
use Illuminate\Queue\InteractsWithQueue;
use Path\To\Your\Log;

class SendEmailNotification
{
    /**
     * Create the event listener.
     *
     * @return void
     */
    public function __construct()
    {
        //
    }

    /**
     * Handle the event.
     *
     * @param  Login  $event
     * @return void
     */
    public function handle(Login $event)
    {
        Log::info("Пользователь вошел!");
    }
}