The ID of the event.
Optionalextra: stringThis must be the application iD of the app to which the video belongs, otherwise null.
Optionalparams: PlaytimeParamsThe PlaytimeParams that holds the user acquisition (UA) paramaters and placement (optional).
OptionaluaChannel: stringThe uaChannel value.
Sends a user event to Playtime. These events help to improve the accuracy of the app recommendations for the user.
Supported only on Android.