Trade me ... and pay me

Because of the payment schedule in his contract, Kevin Durant had a most profitable day right after telling the Nets he wants out

On June 30, Kevin Durant formally asked the Brooklyn Nets to trade him.

On July 1, league sources say Durant was owed and received an eight-figure check from the Nets — one of two massive advance payments that the disgruntled superstar is scheduled to collect from Brooklyn by Oct. 1 while he's also in the midst of lobbying the team to move him.

If it wasn…