Ошибка: Object of type User is not JSON serializable

Пытаюсь передать request.user в функцию, но появляется ошибка

Object of type User is not JSON serializable

Подскажите пожалуйста как правильно сделать сериализацию, каким способом и где можно подробнее об этом почитать. Или можно как-то исправить это другим способом?

views.py

from django.shortcuts import render
from django.contrib.auth.decorators import login_required
from .forms import *
from django.views.generic import DetailView, FormView
from django.http import HttpResponse, HttpResponseRedirect
from instabot import Bot
from django.contrib.auth.mixins import LoginRequiredMixin
from .tasks import check_account
import json


class accounts(LoginRequiredMixin, FormView):
    model = InstAcc
    form_class = FormInstAcc
    template_name = 'primeApp/accounts.html'

    def get_context_data(self, **kwargs):
        context = super().get_context_data(**kwargs)
        context['accs'] = InstAcc.objects.filter(user=self.request.user)
        return context

    def post(self, request, *args, **kwargs):
        form = FormInstAcc(request.POST or None)
        if request.method == 'POST' and form.is_valid():
            data = form.cleaned_data
            new_form = form.save(commit=False)
            new_form = request.user
            new_form.save()

            login = data["login_inst"]
            password = data["password_inst"]

            status = check_account.delay(login, password, user)
            print(status)
            return HttpResponseRedirect(self.request.path_info)

        return HttpResponseRedirect(self.request.path_info)

Функция

def check_account(login, password, user_s):
    error = False
    try:
        bot = Bot()
        bot.login(username=login, password=password, is_threaded=True, force=True)
        user_info = bot.get_user_info(login)
        print('starttttt')
        b = InstAcc(user=user_s,
                    login_inst=login,
                    password_inst=password,
                    username=user_info["username"],
                    follower_count=user_info["follower_count"],
                    following_count=user_info["following_count"],
                    img=user_info["profile_pic_url"])
        b.save()
        print('successsss')
    except:
        error = True
        print('error_add_account')
        InstAcc.objects.get(login_inst=login).delete()
        print('errrrror')
    return error