This page will explain how to claim your rewards from the staking pools at The Sandbox.
You can claim your rewards that you have accumulated from staking without having to withdraw your stake first.
1) Go to your profile at The Sandbox. Then select the Staking tab. And click on the farm you want to manage.
2) Click the "Claim" button.
3) Sign the transaction in your wallet's pop-up prompt.
After you have signed the transaction prompt in your wallet, your accumulated rewards will now be collected.