{
  "manageEntity": {
    "action": "Save",
    "entityId": "1269496866",
    "entityType": "Track",
    "nonce": "0x9613e6ab24f79e563a30001b6b581993572f2810f07f362b2e396fb991a60f42",
    "signature": "0xb21b8acf380e238f9193ebfee99baf66544aba910c5d6246a465529b6ac2a96e6eac4cb9109d33d193ed5ca7f8aca61c0d1bb732985f3e873595cff52dee31ef1b",
    "signer": "0xd1bC12b8b46f2FAa152aB791052b4a26826F86F5",
    "userId": "481080235"
  }
}