Previous top bid from the last batch was $570, but the auction got drowned out by the holidays.
I'll be running a new auction in a couple of days, but in the meantime since you bid in all previous auctions but missed the last one, if you want to top that bid you can just send 571 steem for each crown you want to Hive account@vivacoin and include the code word in the memo section.
Then just hit up Hive account@williambanks in steemit.chat with your email address and I'll send you an invite to our crownholders slack to get you started.

Otherwise stick around a couple of days and wait for the next auction to start. It will be very soon.