{
  "manageEntity": {
    "action": "Save",
    "entityId": "1058439967",
    "entityType": "Track",
    "nonce": "0x44e08434bce256d4d1101a2d110fab922bf75c49a9d020c726997a0e43fffa9b",
    "signature": "0x308311a4dd869e3dfa32247afa76fee1b5a643d509da33da92fb3f7cec1d2b4b44502624534ef7c38ab9f64d4f60f4f089f9ba31db5299bdb06f8a1f1b35001f1b",
    "signer": "0x036B1ee0d2003ae5B5E252d58647d13f0e588EEB",
    "userId": "161353174"
  }
}