A Jersey City woman faces up to 56 years in prison after pleading guilty Friday to using hitmanforhire.com to hire a man to kill her ex-boyfriend’s new girlfriend, according to a federal indictment.

Marissa Mark, 28, also of Allentown, Pa., pleaded guilty to conspiracy to use interstate commerce to commit murder-for-hire, using interstate commerce to commit murder-for-hire, attempted access to a computer, aiding and abetting, and three counts of aggravated identity theft, said Zane D. Memeger, U.S. Attorney for the District of Eastern PA.

Mark admitted that in 2006 she paid a person $37,000 for the contract kill that never happened, using Paypal and stolen credit card accounts belonging to other people, officials said.

But the person Mark sent the money to met with the intended victim near her home in California and told her he had been hired to kill her but said he would not commit the murder because she reminded him of his daughter, court papers say.

The man instead gave the intended victim the option of buying back the $37,000 contract, saying if she did not, her boyfriend would be killed instead, court documents say. The couple contacted police, leading to Mark’s arrest in Jersey City in March, official said.

The alleged hitman, Essam Eid, of Las Vegas, was arrested in England on unrelated charges, according to court documents.

Mark has been ordered to surrender on Oct. 6 and she will be sentenced by U.S. District Court Judge Gene E.K. Pratter in Philadelphia on Dec. 9, 2011.