{
  "manageEntity": {
    "action": "Save",
    "entityId": "175017",
    "entityType": "Track",
    "nonce": "0xdf66d84e1c0eef9e08df3f68f6a2761bb994793615f6e89af27283f299c983fb",
    "signature": "0xdcfb9db880e237f8917c65fd741ee2e1831b953d4286027d642dc3fd61e7575d2429df2e305d743c9fdddbf2308aab1b8c995490359537b9f660cd3b1c5268021b",
    "signer": "0x0eE7CC00e9f61Fa97181E6BB203C97f8b23904e6",
    "userId": "968779607"
  }
}