Could you kindly explain to me how Nexo operates? I'm interested in understanding the mechanisms behind its functionality and how it differs from other cryptocurrency platforms. Could you elaborate on the role of Nexo in facilitating crypto lending and borrowing? Also, how does Nexo ensure the safety and security of user funds? Additionally, I'm curious about the earning potential through Nexo's platform and the types of crypto assets it supports. Could you provide insights into these aspects as well? Thank you in advance for your detailed explanation.