Forwarding Webhook Payload via REST-Command

1

I would like to have the webhook payload, which I receive via Home Assistant, via a REST-Command to a local HTTP-Post-Destination.

I try to do this via

alias: Incoming-Revid-Trigger
description: ""
triggers:
  - trigger: webhook
    allowed_methods:
      - POST
      - PUT
    webhook_id: "xxx123"
conditions: []
actions:
  - action: rest_command.incoming_revid_webhook
    data:
      payload: "{ \"data\": {{ trigger.json }} }"
      method: post
mode: single

The webhook is received, but the body is empty.

Do you have an idea, how I can get the complete payload included into the payload of the rest-command?