User data stream web socket problem

Hi , need help

I’m not - using URLs of documentation , having sucess to receive up dates of my positions at futures - testnet account.
I need monitoring PNL changes of each position.
I got LISTEN KEY with POST as indicated at docs. But none of the websockets URLs indicated there send me the payload of my positions .
Help me ! How access my PNL changes ? What’s the correct EVENT ?
If possible , with example of the WS urls call
Perhaps I’m making mistakes with the sintaxe

PNL can only be fetched from the endpoint: Binance API Documentation