{
  "manageEntity": {
    "action": "Save",
    "entityId": "1164449326",
    "entityType": "Track",
    "nonce": "0xcede5535d575654d8b5e15a02b75bd28281fdbcc96666671c75b687da654fffa",
    "signature": "0x702ee298abece8a99706cce7e7aae07b9fc7f1837c7f8330e3f6f6eccff06db7497a7c7b0005c5a64bf0fc16b76826f810c904878cf828cefc94127f421d9b001b",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}