{
  "manageEntity": {
    "action": "Save",
    "entityId": "63092326",
    "entityType": "Track",
    "nonce": "0xc644fbe1176dbfeed05a4cbbdc2b97aad39efeec88a064642ae460a0b04db094",
    "signature": "0x06a2c27bf9046ed9421084afaabb72fc330b79c0cb55dc78b393a47b7ef69e6713a38103786ad72e1153d1fa61a28f9922e72ca453f12a1e3ff5ecf921c4fe391b",
    "signer": "0xbF4F1f4df4779768AfE75515b1552a2Bc5b4Dd32",
    "userId": "100976759"
  }
}