| Name | Type | Description | Notes |
|---|---|---|---|
| mid | NSString* | Message ID. | [optional] |
| uid | NSString* | User ID. | [optional] |
| sdtid | NSString* | Source Device Type ID. | [optional] |
| cts | NSNumber* | Created Timestamp (past, present or future). Defaults to current time if not provided. | [optional] |
| mv | NSNumber* | Manifest Version. | [optional] |