i created a model witch have user default class as base class, so i didn't succeed to launch update even when i set acl as shown:
{
"accessType": "*",
"principalType": "ROLE",
"principalId": "$everyone",
"permission": "ALLOW"
}
"error": { "statusCode": 401, "name": "Error", "message": "Authorization Required", "code": "AUTHORIZATION_REQUIRED", ...