curl --request GET \
  --url https://us-central1-siro-prod.cloudfunctions.net/api-externalApi/v1/integrations/engagements/{id}

{
  "id": "<string>",
  "externalId": "<string>",
  "engagementType": "<string>",
  "direction": "<string>",
  "subject": "<string>",
  "content": "<string>",
  "startTime": "<string>",
  "endTime": "<string>",
  "createdAt": "<string>",
  "updatedAt": "<string>",
  "recordingId": "<string>",
  "opportunityId": "<string>",
  "accountId": "<string>",
  "organizationId": "<string>",
  "account": "<any>",
  "engagementUsers": [
    "<any>"
  ]
}