{
  "manageEntity": {
    "action": "Save",
    "entityId": "165726872",
    "entityType": "Track",
    "nonce": "0x46663cd924e3be1ce8e4d48689bfbb214d043d7ef7146145e979482797f730d5",
    "signature": "0x97dcbc724645d034694d463b2e0755647dede331550084c1fb608a285f92d2fc4fb76efe6498307d5911752ebf4c627b9be6e71e8363fc54df6bc1b29fecdbdc1c",
    "signer": "0x6AAB6EaEa3f7F15750b649C269b0391dcB19dEeb",
    "userId": "92019297"
  }
}