Below is an example snapshot start message.
{
"$type": "Darwin4Trains.Entity.SnapshotStart, Darwin4Trains.Entity, Version=1.0.258.3, Culture=neutral, PublicKeyToken=null",
"TimeStamp": "2017-09-15T14:46:52.3008696",
"NMSCorrelationID": "2ebf0a35-e4fa-45d2-9485-47d1553027da"
}
The NMSCorrelationID will be repeated in the corresponding snapshot end message