PayPal redirection

var create_payment_json = {
    "intent": "sale",
    "payer": {
      "payment_method": "paypal"
    },
    "redirect_urls": {
      "return_url": "http://localhost:15000/api/ReturnPayment/retornoPayPal?id=" + params.orderNo,
      "cancel_url": "http://localhost:15000/api/ReturnPayment/retornoPayPal?id=" + params.orderNo
    },
    "transactions": [{
      "item_list": {
        "items": items
      },
      "amount": {
        "currency": "BRL",
        "total": total
      },
      "description": "aaaaaa."
    }]
  };

When my client closes the order I send this data to PayPal, which returns me a redirect link and a PaymentId , I use this link to send my client to the PayPal page and make the payment, when he finishes the precise payment of two things.

First: Send the payment response to the link that passes through return_url .

Second: Redirect my client to the home page of my site.

I can not do the second part, how can I set up to have two return urls or something like that?