{
  "manageEntity": {
    "action": "Save",
    "entityId": "127162",
    "entityType": "Track",
    "nonce": "0xcf181817f8270709c4fa87cd1253e4f9bcbde02a1f141b03c45eb810262db428",
    "signature": "0x2c45b288df5024ec12fb188694ffbd9cabc8a58b6fbbb0d9ad26677b16f898c06fb02c89eea6c125cb303618eb60828191b0ab4c38aaad60b62982c12f9c5d9f1b",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}