{
  "manageEntity": {
    "action": "Save",
    "entityId": "1110502394",
    "entityType": "Track",
    "nonce": "0x71f40444ddddad3ed62c3e06e3dd24c13e6edcfa0dffc56cff97bbb0d2a8bca6",
    "signature": "0x8492471cb9660640911bcbad4ac4a6fdac5bb886079be13df3f10d92e78a2fac6988fee422f5037bdf7c188064aea75f447b29b1bab5113454d847a41b5a31ba1b",
    "signer": "0xDfAC0702040EaBd2d42e773014D4b014C0747D9c",
    "userId": "707937"
  }
}