Device activity
-----------------

+------------------------+------------------------------------------+-------------------------------------------------------------------+
| Name                   | Type                                     | Description                                                       |
+========================+==========================================+===================================================================+
| date                   | datetime                                 | date of activity in UTC                                           |
+------------------------+------------------------------------------+-------------------------------------------------------------------+
| deviceId               | number                                   | device id                                                         |
+------------------------+------------------------------------------+-------------------------------------------------------------------+
| event                  | :doc:`Event type <../enums/event-type>`  | event type                                                        |
+------------------------+------------------------------------------+-------------------------------------------------------------------+
| id                     | number                                   | id of activity                                                    |
+------------------------+------------------------------------------+-------------------------------------------------------------------+
| source                 | :doc:`Source <../enums/activity-source>` | source of activity                                                |
+------------------------+------------------------------------------+-------------------------------------------------------------------+
| userId                 | number                                   | id of user who performed activity (if known)                      |
+------------------------+------------------------------------------+-------------------------------------------------------------------+
| userName               | string                                   | name of user who performed activity (if known)                    |
+------------------------+------------------------------------------+-------------------------------------------------------------------+