Variable value in mqtt switch payload

@viktak wrote:

Hi,
I’m using an mqtt switch entity with the following definition:

- platform: mqtt
  name: mySwitch
  command_topic: "cmnd"
  value_template: '{{ value_json["Data"] }}'
  qos: 1
  payload_on: '{"key": {% anotherentityofmine.state %} }'

Unfortunately, the payload that arrives to the broker is the literal string “{“key”: {% anotherentityofmine.state %} }”.
Is there a way to get the actual value of it?

Thanks for any pointers!

v

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