How to start Zendesk chat after receiving a coin base webhook?

I hope you all are well. Currently, I'm working on a website where I'm selling game items like gold and characters. I'm receiving payment through Coinbase. I want to send a message in Zendesk chatbox from the user who paid, after successful payment on Coinbase.
Tech I'm using

• Django for backend
• HTML, CSS and JS for front-end

Things I've done so far

1. I've managed to receive money in my Coinbase account and Coinbase redirects to my website after successful payment. I'm doing all this by the following code.

def buy_osrs(request):
    obj = Setting.objects.first()
    osrs_price = getattr(obj, "osrs_price")
    osrs_fee = getattr(obj, "osrs_fee")
    form = OSRSForm()
    site = get_current_site(request).domain
    payment_success = f"https://{site}/payment/"
    if request.method == "POST":
        form = OSRSForm(request.POST)
        if form.is_valid():
            form.save()
            total = float(form.cleaned_data.get("osrs_numbers")) * osrs_price + osrs_fee
            charge_info = {
                "name": "My Website",
                "description": "My Website Description",
                "local_price": {"amount": total, "currency": "USD"},
                "pricing_type": "fixed_price",
                "metadata": {"rsn": form.cleaned_data.get("rsn"), "email": form.cleaned_data.get("email")},
                "redirect_url": payment_success,
            }
            charge = client.charge.create(**charge_info)
            return redirect(charge.get("hosted_url"))
    context = {
        "form": form,
        "osrs_price": osrs_price,
        "osrs_fee": osrs_fee,
    }
    return render(request, "main/buy_osrs.html", context)

2. I've managed to set up and receive webhooks, which change my database according to the response it gets from Coinbase.

@csrf_exempt
def coinbase_webhook(request):
    if request.method == "POST":
        # event payload
        request_data = request.body.decode("utf-8")
        # webhook signature
        request_sig = request.headers.get("X-CC-Webhook-Signature")

        try:
            # signature verification and event object construction
            event = Webhook.construct_event(request_data, request_sig, settings.SECRET_KEY)

            obj, created = CoinbaseOrder.objects.get_or_create(order_id=event.id, code=event.data.code)
            if event.type == "charge:pending":
                obj.status = "Pending Confirmation"
                obj.save()
                
            elif event.type == "charge:confirmed":
                obj.status = "Payment Confirmed"
                obj.save()

            elif event.type == "charge:delayed":
                obj.status = "Payment Delayed"
                obj.save()

            elif event.type == "charge:resolved":
                obj.status = "Payment Resolved"
                obj.save()

            elif event.type == "charge:failed":
                obj.status = "Payment Failed"
                obj.save()

        except (WebhookInvalidPayload, SignatureVerificationError) as e:
            return str(e), 400

    return HttpResponse()

Things that I want
Now my requirement is whenever event.type == "charge:confirmed" happen, an automatic message should be sent in Zendesk live chatbox from end-user saying, Hi, I'm ABC. I've paid you XYZ amount.
I think this is not possible through webhook, I have to use jquery or some other technology for this. So kindly guide me what's the best strategy