{
  "manageEntity": {
    "action": "Save",
    "entityId": "1060180471",
    "entityType": "Track",
    "nonce": "0x650f7e96fe38c228d4d38c21f704a6fad8008446811211aa910e3396b420c244",
    "signature": "0x5c2ea1e9c79d832002c7775e067cbea32e5bf6d7ea8732f29718a719e3a090f75645e45a3068162c30b06619f2b7fa452fc9da6ec0773465e73437fcf1623ed01c",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}