Can you clarify the legality of MoonPay in the United States? I understand that MoonPay is a cryptocurrency payment processor, but I'm unsure if it's fully compliant with all relevant laws and regulations in the country. As a concerned individual looking to use MoonPay for my transactions, I want to ensure that I'm not breaking any laws by doing so. Could you please provide some insight into the legal status of MoonPay in the US?