For anybody else having trouble getting the integration working. I have written a python script for Hoover WDWOA596H WIFI Washer Dryer which uses the Candy API.
The yaml approach above from _Paolinho looks great though. Wish I had seen that before I started my project.
If anybody is curious here is my approach: GitHub - Eikkargh/Candy-API-to-JSON: Communicates with Candy/Hoover washer dryers to produce a JSON readable by Home Assistant
It may need modifying if you are using a different machine.