For enterprise-scoped API keys (see /processes/apikey/enterprise/generate), request a companyUuid:<uuid> scope value identifying which of the companies accessible to that enterprise identity to issue the access token for — e.g. scope=companyUuid:5f010f1e-6fc1-447f-93a8-fad19668b3af. This is a standard OAuth2 client_credentials request field, so any regular OAuth2 client can request it without Fountain-specific parameters.