Костыль

views.py

def status_page(request):
    if request.method == 'POST':
        -Магия-
        email = request.POST.get('email')
        # сумма которая списана с отправителя
        withdraw_amount = request.POST.get('withdraw_amount')

        a = f'{notification_type}&{operation_id}&{amount}&{currency}&{datetime}&{sender}&{codepro}&{notification_secret}&{label}'
        sha1_hash2 = sha1(f'{a}'.encode('UTF8')).hexdigest()

        if sha1_hash == sha1_hash2:
            reason = False

            reason_c = dict(REASON_CHOICES)
            for k, v in reason_c.items():
                if v == notification_type:
                    reason = k
            user_inst = Profile.objects.get(user=label)
            UserBalanceChange.objects.create(user=user_inst.user, reason=reason, amount=amount, datetime=datetime)