Extracting Data from JSON Response (of Kostal Power Converter)

i want to read data from my Kostal Power Converter into a sensor using the rest interface.
This is the content in my configuration.yaml:


This is the response from the power converter:


the content in the Sensor is “unbekannt”, which means “unknown”.
the desired value is 27758.136719

Can somebody tell me whats wrong in my configuration.yaml ?

Thank you in advance

Please format your post correctly for the forum: How to help us help you - or How to ask a good question

This includes the json data. At the moment it has been rendered invalid as it has the wrong sort of quote marks.

Also try this:

value_template: "{{ value_json.dxsEntries[0].value }}"