Giving camera away, instructions?

Hi,
My Eufy is a great little camera. I love it. I used it here in Canada for an elderly parent. Now I want to send it to the US to my niece.
I just manually deleted all the videos.
What do I do with the subscription? Cancel it, or let it finish to the end of the year? What do I need to do? How do I ensure the transition is smooth and easy for my niece’s family?
I’m technologically challenged, be gentle.
Thank you!