Failed REST connection with POST method

[ariaseze]

Hi guys, I'm having trouble making my first REST connection from Qlik Sense Desktop, I connect correctly with another external client but with Qlik I can't complete the configuration correctly.

Below I leave the configuration with the external client and with Qlik.

External REST client

With Qlik Connector

Error

If anyone can give me some light on the matter I appreciate it very much!