How to Set Up a Webhook and Branch on a Condition in AppSheet?

[enq]

When I set up Bots to perform a webhook, the response is as follows:

If successful:
"response": {"data": "success"}
If failed:
"response": {"error": "error reason...."}

I want to use the next automation step 'Branch on a condition' to determine true or false and take different actions accordingly.

How should I set my webhook's "Specific Type" field and the expression for 'Branch on a condition'?

Here is my current setup:
If the API call is successful or error, it encounters an issue. 
response error
The AppSheet Bots Monitor shows the error: Failed Webhook type translation: Key 'data' not found in returned object.

response successful
The AppSheet Bots Monitor shows the error: Failed Webhook type translation: Key 'error' not found in returned object.

Does anyone know how to configure this correctly? Thank you!