Rangers are to play Linfield in a friendly game at Ibrox on April 10.
The Scottish side have been regular visitors to Windsor Park in recent years and the Northern Irish champions hosted a fund-raising fixture for the administration-hit club last year.
Rangers manager Ally McCoist said: "Linfield offered the hand of friendship to Rangers last May and we are delighted to thank them for their support by announcing this game at Ibrox.
"The club has a strong following from Northern Ireland and our supporters turned out in huge numbers to back us at Windsor Park last year in a match that really helped us out in difficult times.
"I look forward to meeting David Jeffrey and his squad at Ibrox next month and once again I would like to thank Linfield for the support they gave us last season.
"I have no doubt the fans will pack Ibrox yet again to see both teams in action."
The Cumbrians had agreed a deal with the 23-year-old on March 11, but had been unable to hand the striker his debut after his former club FC Sion refused to hand over his registration.
But the deal was confirmed by all parties on Friday afternoon and Manset could now make his debut against Yeovil.
Boss Greg Abbott told the club's official website: "We're pleased that we have finally got this one finalised.
"There has been a hold-up with the international clearance side of things but that's done and dusted now.
"We can put that behind us and Manny can get started on what it is he has come to us to do.
"He wants to show everyone that he is ready to get his career back on track and, if that turns out to be the case, this should prove to be an excellent move for all concerned."
