{
  "manageEntity": {
    "action": "Save",
    "entityId": "1926782089",
    "entityType": "Track",
    "nonce": "0xb158e790b63b4d909333218f79961940f085997168606b92ebae6559c89b9871",
    "signature": "0xbd298316ab9b825843ea41dad75542b56a909ef634af19c2a6985cbed20fbeb86b929e5d2e1b5f4d4b99fe7d88bbc678698fb08b9728386ab0dfb6d1ec4db2501c",
    "signer": "0x283a6Fd0bE176865B404dfc3B2805D3a2701d62e",
    "userId": "484365174"
  }
}