API V2 - Update record does not work

Hi all!

Im trying to update a record following these instructions https://www.zoho.com/crm/help/api/v2/#ra-update-records, but I got an error.

Ive been debugged the file entity. Php and thisrecord might be an object, so.... It is possible the rest api doc is incorrect?

P.S.: I also tried a ID integer (like documentation shows).