{
  "manageEntity": {
    "action": "Save",
    "entityId": "1718492650",
    "entityType": "Track",
    "nonce": "0xc7bc1a677da6d831c08b86598eb12c777e5ef8b20f73d5ad414bb7a50c8686b9",
    "signature": "0x8f0619df21f26f8fb79ce8e00e1f5911fe8b791e4fb7a3f4fb26a868ce78f1366a6584fcadda6d326e96612bc706aae7041df55df5567212dc877c26ceaa448c1b",
    "signer": "0x6AAB6EaEa3f7F15750b649C269b0391dcB19dEeb",
    "userId": "92019297"
  }
}