How To Adjust the Content of the Leaky Paywall Subscribe Message on a Post
leaky_paywall_subscribe_or_login_message filter, you can easily adjust the content of the Leaky Paywall Subscribe message that is displayed when the user runs out of free content. This filter will give you the most flexibility to adjust the nag content.
Add a custom subscribe nag message
Use the following example as a guide to see how to customize the subscribe nag message. For example, you could change it based on the category of the content.