Information about concurrent users.
| Column name | Column type | Description | 
|---|---|---|
| userName | varchar(255) | The name of the user associated with the device ID. | 
| packageName | varchar(255) | The package name of the mobile business object (MBO) affected by the data change notification (DCN). | 
| curTime | timestamp | The current time. | 
| domain | varchar(255) | The domain to which the package involved in DCN belongs. | 
| type | bit | The type of request. If 1, it is a messaging request. If 0, it is a replication request. |