Paul, Weiss, Rifkind, Wharton & Garrison and Cleary Gottlieb Steen & Hamilton have lined up to represent a pair of top executives at Ripple Labs Inc. in a U.S. Securities and Exchange Commission lawsuit accusing the tech firm, its co-founder and CEO of raising more than $1.3 billion off the sale of unregistered digital coins.

Attorneys from the Big Law firms entered appearances Monday in the civil action, which alleged that Ripple had sold more than 14.6 billion units in XRP, one of the world’s largest cryptocurrencies, without registering the offerings with the SEC.