Create a multisig transaction that both parties need to approve in order to do an atomic sale of your account.
Transfers both "owner" and "active" authority to a clone of the buyer's account's authority.
MAKE SURE TO INSPECT THE GENERATED MULTISIG TRANSACTION BEFORE APPROVING IT.
--buyer-permission string Permission required of the buyer (to authorized 'eosio.token::transfer')
--memo string Memo message to attach to transfer
--proposal-name string Proposal name to use in the eosio.msig contract (default "sellaccount")
--sale-expiration duration Expire proposed transaction after this amount of time (30m, 1h, etc..) (default 1h0m0s)
--seller-permission string Permission required of the seller (you, to authorize 'eosio::updateauth')