How to Delete records using Odata Dynamics NAV 2017 web services - Error in query syntax

Question

I'm trying to delete a record in the User Personalization table. I use the primary key User_SID and get the following error:

error

Articles:

https://community.dynamics.com/nav/f/microsoft-dynamics-nav-forum/374872/odata-rest-web-services---not-able-to-delete-sales-order

How to Delete records using Odata Dynamics NAV 2017 web services

These are articles that I used to help set up the api-call. In my eyes there is no difference, but my call doesn't work.

Can someone help? Thanks! :D