{
  "manageEntity": {
    "action": "Save",
    "entityId": "427886091",
    "entityType": "Track",
    "nonce": "0x31085242061438fdefb191c802c8338ade562c11c106125a7d91a75e85887951",
    "signature": "0x922254ebd8554c69e2c56080c16ecb682faa471f4c8db02782e6f5bb92b83f4869eb420998171e6f79090a3bc2e1162e7887d0ab9df5de8df3cccd783f6776131b",
    "signer": "0x24844077bE6bb825c0548F36B4EFA030d05Ee1CD",
    "userId": "601282125"
  }
}