UsageLedgerEntry

{
    "sessionID": "f64470cf-3860-4029-b905-d576bb175df4",
    "userID": "string",
    "mode": "voiceInput",
    "asrSeconds": 0,
    "outputCharacters": 0,
    "createdAt": "2019-08-24T14:15:22.123Z"
}