wticreatorstudio/Modules/Staff/Entities/Staff.php

<?php
namespace Modules\Staff\Entities;

use App\Models\Staff as UserStaff;
use \Modules\WTIJobBoard\Entities\JobRequestBadge;
use Illuminate\Database\Eloquent\Model;

class Staff extends UserStaff
{
   protected $casts = [
     'badges' => 'array',
     'is_active' => 'boolean'
   ];

   protected $appends = [
        'ott_photo_url'
    ];

    public function getOttPhotoUrlAttribute()
    {
        return "/public/storage/{$this->ott_photo}";
    }
}