{
  "manageEntity": {
    "action": "Save",
    "entityId": "232088980",
    "entityType": "Track",
    "nonce": "0x7de48c32ac2469961b4825e57325747a0644d375ce802b15f4359186fdefc9c0",
    "signature": "0x6dfe365000c0cda0a4ca92a4940f1c79a62ee24452d0f7da23ff9ed9d302fa3841fd3901e8950a974ffb88c42d13650636a438e25037a51d8170c2b1a67d17091c",
    "signer": "0x65b2681094e762CAD2349e6C1e2FbC8d54b9c046",
    "userId": "11153747"
  }
}