{
  "manageEntity": {
    "action": "Save",
    "entityId": "62393",
    "entityType": "Track",
    "nonce": "0x6a198816af1cd881c1f13a0241a14e30003d1e2b4db3dfc96094536a82d709fb",
    "signature": "0x78a3547a527ebe47ffd59d83d12f354bfa120b0a8048df3f2df1b8db370136d2754807cb20dc923e20520558b01b19d739a0de8c27a2275900a4dae26310f7051b",
    "signer": "0x136A4e19270387bc21d7e58a9592D46864B0Ad57",
    "userId": "956002390"
  }
}