I read some reporting that the going rate was only $20k, 10 up front and 10 after.
I think the OP has the numbers wrong but regardless, it isn't something that should ever be bought.
Sorry, it was 100k, 50 up front:
"A onetime top adviser to the Trump campaign was paid $50,000 to help seek a pardon for John Kiriakou, a former C.I.A. officer convicted of illegally disclosing classified information, and agreed to a $50,000 bonus if the president granted it, according to a copy of an agreement."
And this is not to trump, but rather to his groupies to talk to him on your behalf. At least on paper.
Still, probably a good value if you actually get it.