Represents a change in a driver's work state.
Note: Fields which are not available will be omitted.
JSON body: {"SystemType":"AssetManagement","EventId":"ea9532ab-a86e-460f-bdc2-01b8cc718733","VehicleId":"03119948-ef50-4b0d-aa88-38f9ed333782","DeviceTimestamp":"\/Date(1296063197000+0000)\/","ReceivedTimestamp":"\/Date(1296063185653+0000)\/","DriverId":"75d97e2b-ae46-403a-8f4c-58b688beb9fc","WorkState":"WORK","Origin":"VEHICLE","DriverOrCoDriver":"Driver"} XML body: <?xml version="1.0"?> <DriverWorkStateChange SystemType="AssetManagement" EventId="ea9532ab-a86e-460f-bdc2-01b8cc718733"> <VehicleId>03119948-ef50-4b0d-aa88-38f9ed333782</VehicleId> <DeviceTimestamp UtcOffset="0">2011-01-26T17:33:17Z</DeviceTimestamp> <ReceivedTimestamp UtcOffset="0">2011-01-26T17:33:05.653Z</ReceivedTimestamp> <DriverId>75d97e2b-ae46-403a-8f4c-58b688beb9fc</DriverId> <WorkState>WORK</WorkState> <Origin>VEHICLE</Origin> <DriverOrCoDriver>Driver</DriverOrCoDriver> </DriverWorkStateChange>