Token Exchange Request - Zitadel

Parameter	Description
grant_type	Must be `urn:ietf:params:oauth:grant-type:token-exchange`
subject_token	A token that represents the identity of the party on behalf of whom the request is being made.
subject_token_type	An identifier that indicates the type of the token in the subject_token parameter.
actor_token	Optional. A token that represents the identity of the acting party. In ZITADEL this the impersonator.
actor_token_type	An identifier that indicates the type of the token in the actor_token parameter. Required when actor_token is provided
requested_token_type	Optional. An identifier that indicates the type of the token requested. Defaults to access token if not provided.
scope	Scopes you would like to request from ZITADEL for the requested token. Scopes are space delimited, e.g. `openid email profile`.
audience	Optional. Must be a subset of the combined audiences from both subject and actor tokens.
resource	Currently not supported