Zoho Flow - Create CRM Meeting - Expected input type is jsonobject

Zoho Flow - Create CRM Meeting - Expected input type is jsonobject

I'm trying to use the Create Module Entry action in Zoho Flow to create a meeting in Zoho CRM.

The participant field is throwing an error during debugging:
"Zoho CRM says "Invalid input for invalid data. The expected input type is jsonobject."

I've tried the following in the participants field and both throw the same error.
  1. [{"type":"email","Email":"${trigger.Email}"}]
  2. {"type":"email","Email":"${trigger.Email}"}

Can anyone tell me if there is a way to do this without creating a custom function?