The Jewish traditions are:

Sanhedrin 98a:16: Said to: When Messiah come? Said to him: Go ask him. And where is he sitting? At the entrance of Rome. And what is his sign? He sits among the poor who suffer from illnesses. And all of them untie and tie at once, unties one and ties one. He says: Perhaps I will be needed that I will not be delayed.

Sanhedrin 98b:13-15: Messiah .... Rav Nahman says: If is among the living such as me, as it is stated: “And their prince shall be of themselves, and their governor shall proceed from their midst”. Rav says: If is among the living such as our saintly Rabbi. If is among the dead such as Daniel, the beloved man.

There are standard implications read into these clauses, for instance the river for washing the wounds is mentioned earlier on the page, and the Messiah's practice is implied as being not to untie all his bandages at once.