VerifyEmail.php

<?php

namespace App\Notifications;

use App\Services\ModelHasher;
use Illuminate\Notifications\Notification;
use Illuminate\Notifications\Messages\MailMessage;

class VerifyEmail extends Notification
{
    use Queueable;

    /**
     * Get the notification's delivery channels.
     *
     * @param mixed $notifiable
     *
     * @return array
     */
    public function via($notifiable)
    {
        return ['mail'];
    }

    /**
     * Get the mail representation of the notification.
     *
     * @param mixed $notifiable
     *
     * @return \Illuminate\Notifications\Messages\MailMessage
     */
    public function toMail($notifiable)
    {
        return (new MailMessage())
                    ->subject('Email verification needed')
                    ->action(
                    	'Verify your email', 
                    	url('/subscriber/verify?token='.(new ModelHasher())->encode($notifiable))
                	)
                    ->line('Thank you.');
    }
}