{
  "manageEntity": {
    "action": "Save",
    "entityId": "1685606835",
    "entityType": "Track",
    "nonce": "0xd5f024d55ee497d65c5ec39f80b247513e62411114a7fdb0de86acebbc1509dc",
    "signature": "0x15f1cee3fe1da72cf424562a01f27ab2cbe22a8af3e148f677a795f8ada9d5200bbfc0f7c3f9d9fe7db9b1223337c586dd195d1403df003cb511276d32161fbc1b",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}