• On the basis of it being necessary for the performance of a contract, we use your personal information to process and deliver auction entries and rewards on the Handshake Blockchain. • We use your personal information to respond to and provide customer service. • We use your personal information to send information including confirmations, invoices, technical notices, updates, security alerts, and support and administrative messages. • With your consent, we use your personal information to communicate about promotions, upcoming events, and other news, including news about products and services offered by us and our selected partners.