Wis. Stat. § 806.18: Assignment of judgment.

(1) When a duly acknowledged assignment of a judgment is filed, the clerk of circuit court shall enter the assignment on the judgment and lien docket.

(2) An assignment may be made by an entry on the judgment and lien docket thus: “I assign this judgment to A.B.”, signed by the owner, with the date affixed and witnessed by the clerk of circuit court.