How do I change the order description in paypal email?

1. A user registers/creates a site
2. Selects their desired membership level and subscribes afterwards.
3. Proceeds to paypal to complete payment and is emailed a receipt in their inbox.
4. In this email the order is described as the Network Name + Level Name:

[My_Network_Name] + Gold: $49.95 USD each month.

I want to change this to something more simple. Like my [my_domain + gold] or just [gold].

Is there a way for me to freely change this? If yes, how?

Thanks.