Recommended article before setting up: Engage: Page Targeting
The YouTube Subscribe CTA is specially designed to make it easy to encourage your visitors to subscribe to your YouTube channel and receive market updates. To create this call to action, select the YouTube Subscribe option from the available list of CTAs.
To use this call to action:
Set the appropriate text, font size, and colors
Choose an appearance, condition and position (see: Editing Your CTAs)
Set an image, and add the channel URL