If its a gift, supposedly as thanks for dethroning Maduro, it belongs to the US American people, and should never "disappear" to one of his properties like so many other things that belong to the people and not him specifically.
If it ends up anywhere else, it was an accepted bribe.
This is Trump who is the most transactional leader ever. It is obviously meant as a bribe from Machado and her backers. Venezuelan interests or people don't factor in this at all except that they are in the way. Trump couldn't make this any clearer. Nor Maria Machado, for that matter :
https://www.youtube.com/watch?v=_E7pHmYUCMk