To watch on your Elisa set top box, you will need to create a Hayu account. You can sign up to Hayu by going to hayu.com/register and entering your details and payment information to create your account.
Once you have created your account, you will need to download the Hayu app from the Elisa app store. Once the app has been downloaded to your device, you can pair your device to your Hayu account by scanning the QR code displayed on the Hayu app on your Elisa device. You can also enter the pairing code displayed on the Elisa device into your Hayu account.