A possession deal with an omnipotent Entity

One day, you're contacted by an entity of incredible power, who chose you at random among all humans.

This being has an interest in visiting our universe for purely recreational and observation purposes but lacks a physical body to explore it properly, so he offers you a deal:

In exchange of using your physical body, he'll grant you whatever you wish. Magical powers, riches, solve world hunger, setting up specific scenarios, you call it. The entity is basically omnipotent.

The downside, is that you will be a "passenger" in your own body as he takes over. You can fully feel things if you wish, you can communicate with the entity and take over temporarily with his permission, go dormant for a period of time if you wish to do so, but overall you'll be 'backseating'. The Entity will always take in consideration and prioritize your choices regarding on how he can achieve your wishes (it has no preferences or opinions in such regards), but might act in its own way to get there unless specified.
Should the deal get rescinded at a later date (it wants to explore at very least the majority of the milky way at minimum before then), it should be noted that its powers are his own, so you wouldn't be able to do the same feats it did although you might leave your body in a different form than it started if you wish so.

If you pass the deal, it might ask another human, or check another universe altogether if you prefer. There's infinite ones, it picked this one and you at random.

Would you take the deal?
What would you try to achieve in such scenario?
Would you have any specific plans?