ldc-web/app/Models/ServiceAccount.php

<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Model;

class ServiceAccount extends Model
{
    /**
     * The attributes that should be cast.
     *
     * @var array
     */
    protected $casts = [
        'account' => 'encrypted',
        'password' => 'encrypted',
        'url' => 'encrypted',
    ];

    /**
     * The attributes that are mass assignable.
     *
     * @var array
     */
    protected $fillable = [
        'name', 'account', 'password', 'url'
    ];
}