Crystal Kim, author of Axios CryptoIllustration: Natalie Peeples/AxiosA jury found Avraham "Avi" Eisenberg guilty on all three counts of fraud and manipulation in a $110 million crypto trade scheme using the Mango Markets platform.Why it matters: The case was the first known test for a jury to decide whether existing U.S. laws governing fraud and market manipulation apply to the world of decentralized finance (DeFi).Between the lines: The 28-year-old Eisenberg will be held to account for his ac...