Manage workspace users

curl --request POST \
  --url https://api.gumloop.com/api/v1/manage_workspace_users \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '{
  "organization_id": "<string>",
  "user_id": "<string>",
  "workspace_id": "<string>",
  "action": "add",
  "user_email": "<string>",
  "is_admin": true
}'

{
  "success": true,
  "message": "<string>"
}