How do pass both notmapped and viewbag value to view from controller?

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ASP.NET

ASP.NET4

ASP.NET2

, +

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//This is the Class********
----------------------------------
using Microsoft.AspNetCore.Identity;
using Microsoft.AspNetCore.Mvc;
using System;
using System.Collections.Generic;
using System.ComponentModel.DataAnnotations;
using System.ComponentModel.DataAnnotations.Schema;
using System.Linq;
using System.Threading.Tasks;
namespace OvhokEMarket.Models.OnlyModels.Account.Security
{
    public class IdentityUserExtraEntity : IdentityUser
    {
        [NotMapped]
        public string EncryptedId { get; set; }
}
}

------------------------------------------------------------------------------
//This is the controller********
------------------------------------------------------------------------------
        [HttpGet]
        public async Task<IActionResult> ListRoles()
        {
        
            ViewBag.SubscribeRemainingDays = CheckPlanOfClient_RemainingDays();//To Display remainging days in view.

            ListRolesViewModels listRolesViewModels = new ListRolesViewModels();
             listRolesViewModels.IdentityRoleExtraEntityLIST = roleManager.Roles;
            foreach (var RolesName in listRolesViewModels.IdentityRoleExtraEntityLIST)
            {
                RolesName.EncryptedId = protector.Protect(RolesName.Id.ToString());//Encrypted data to pass in Notmapped attribute
             
            }
         
            return View(listRolesViewModels);
        }

What I have tried:

I am trying to pass both Notmapped attribute and ViewBag value. But it seems that ViewBag override Notmapped value as null while passing to view.

How do pass both value to view?

Thanks you in advance.