Originally I thought this might be something that went away like Cam Newton's scandal just disappeared.
This article however really makes this more interesting.
http://espn.go.com/espn/otl/story/_/id/9544137/broker-says-johnny-manziel-took-7500-autographing-helmets
An East Coast autograph broker told ESPN on Tuesday that Johnny Manziel was paid $7,500 for signing approximately 300 mini- and full-sized helmets on Jan. 11 and 12 while he was attending the Walter Camp Football Foundation event in January.
The broker said the videos, approximately nine minutes in length in total, were initially shot only to be used as proof with authenticating company PSA/DNA.
The next couple are what an ESPN person saw/heard while watching the video.
ESPN heard Manziel say "you never did a signing with me" and that if the broker were to tell anyone, he would refuse to deal with him again in the future. Manziel, who appeared comfortable throughout the video recordings, also said if asked, he would say he had simply been approached by various autograph seekers.
At one point, ESPN heard a broker ask Manziel if he would take additional cash to sign with special inscriptions, but Manziel declined, indicating he had done that before and it led to questions. The video does not show Manziel accepting cash, which the broker alleges happened three times.
This quote suggests this wasn't his first rodeo and he may have deceived the NCAA before with lying about autographs, this could be something he can just give back the money for and only miss a game or two.
[The broker] also said that Manziel's friend and personal assistant -- Nate Fitch- - was not present or involved in the alleged transactions.
Although at the end of the article the Broker does say that he does not intend to cooperate with the NCAA. But seeing as he was trying to sell the video to ESPN it sounds as if he's just looking to cash this in before giving it away.