Moshiri's loans are unsecured, so he can whistle for them mate. I.E. if they are never payed its off no consequence.
If MSP take operational control of Blue Heaven and essentially Everton, they could just decide to pay the loan back at a point in the future in theory. However in reality it would never happen, because Moshiri/Blue Heaven is the least sneior debt we have behind, R&M, Metro and 777 - then its Blue Heven - with no security. Secondly its not MSP's money it was Moshiri and its long gone, so they wont be worried about it. Thirdly MSP's return will be based on the value of the club they can sell it at, its harder to sell a club that demands that debt to be repaid on top of the other debts - it values the club at over a billion and no one is paying that, so ultimately the money owed to Moshiri comes of their bottom line.
That money will never be payed back to Moshiri or Blue Heaven mate, its gone.