{
  "manageEntity": {
    "action": "Save",
    "entityId": "1009559334",
    "entityType": "Track",
    "nonce": "0x169ff1b9e9fe8b776d14e929a58c916128135b03ae7049900c37183231550cda",
    "signature": "0x08feb84e7fb67b709631f7282e02aeda97438019234dc4f10dbfa0eea9f7110178926ce485b9daff4e035c675e020af53b3981e7352710fca54f0b2527ce46891c",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}