{
  "manageEntity": {
    "action": "Save",
    "entityId": "820246",
    "entityType": "Track",
    "nonce": "0x0e0bf33692d4f74133803c1417938f8607deeffe721ebd406c5d69b2e370b60a",
    "signature": "0xd2e146787f20b872bcc79aed4a267c5f48422f9cc6fc668861503f2f1d8521f65c2052b01c7499faf12a00d4fb7a283b82ce783ce7dab000631fe7427eb8a2061c",
    "signer": "0x06F989586c5477333A41f6057f224Df79903862a",
    "userId": "24240642"
  }
}