How do I correctly to configure the outbound dialing webhook to flatten nested conversation objects before the ServiceNow REST API call? The current payload triggers a 400 Bad Request on the incident table due to invalid JSON structure. We are using Genesys Cloud v2.0 and ServiceNow Paris. The Data Action logs show serialization errors when passing conversation.id alongside agent_id. How do we map these fields correctly in Architect to avoid schema validation failures on the ServiceNow side?