{
  "manageEntity": {
    "action": "Save",
    "entityId": "1092159135",
    "entityType": "Track",
    "nonce": "0xda16a718a7f38878dddc121fa700b717ac28845deaef06e7fea6c1085dfad5d1",
    "signature": "0xb8895740cf94dd94ae1b28d4b1c8d2c2bbdaae242dbccd177e714d4e2c3342a06a37c67c81dc7355b3d29bc70c260cd84b062281ad89bb2090269cf755af14a81b",
    "signer": "0x7451Cf52e883bc4483b88591c194dc3942E7F191",
    "userId": "584186978"
  }
}