In order to claim your mystery box, head over to the claim page.
If you're eligible to claim an NFT membership, you'll see the following claim screen. Click the claim button.
Once you've clicked the claim button, you'll be prompted with a wallet transaction. Go ahead and confirm the transaction.
It may take a moment for the transaction to process. Once that's finished, you should see your NFT membership.
It will be assigned at random. In this example, I received a level 2 membership.
You'll be able to view your membership as well. There will be an unlock period. Once the unlock period is over, you'll have the option to decompose your membership.