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You can change your SBD that you currently have to STEEM, then you can register yourself for the event.

Read this, https://steemit.com/teammalaysia/@aaronleang/guide-on-converting-sbd-to-steem-and-power-up if you do not know how to convert SBD to STEEM.

You have $6.005 Steem Dollars which can be converted to Steem... you have more than enough to convert to 2 Steem