How do I add the UET tag to my website?

[PrimalSanctuary]

I am trying to set up a Universal Event Tracking (UET) code for Bing Ads. Bing provides the following instructions. What is the best way to implement this?
Thanks in advance.

After you create a UET tag, the next step is to add the UET tag tracking code to your website. We recommend that you, or your website administrator, add it to your entire website in either the head or body sections. If your website has a master page, then that is the best place to add it because you add it once and it is included on all pages.
There are two ways to add the UET tag tracking code - either directly or using a tag manager. The benefit of using a tag manager is that it allows you to manage your website tags in one place so you don't have to update your website all the time.

[abolabo]

you can to create your custom html-block via design->blocks and put embed-code here in "source-mode". Then put your html-block into all layouts on design->layouts page

[PrimalSanctuary]

Thanks, I have implemented your solution.