They are calling it a 'bell-shaped contract' that Wright has just agreed to.
This means that the big chunk of the contract is in the middle of the deal with the beginning and end years having much less.
This was a very smart move by both parties.
The Mets will be paying a lot for a Very Solid (hopefully) Wright in his prime and then during Wright's aging years will be payed much less.
This is smart cuz the Mets will be able sign players who will probably be needed cuz Wright won't be as good.
For Wright its very smart because he won't be under horrible scrutiny for being an aged star making so much money.