{
  "manageEntity": {
    "action": "Save",
    "entityId": "2066981024",
    "entityType": "Track",
    "nonce": "0xf6de66369916412486d211072150dcd48a22d146db39b9b7f51bfb112299da73",
    "signature": "0x279c7bd58b2994c872d1ac38248603653cc48f84d17d557ce86b5742d645ae254c733865b729d629ae8c2b6142c1f4e3254441817f438de62277254a0db1c54d1b",
    "signer": "0x06F989586c5477333A41f6057f224Df79903862a",
    "userId": "24240642"
  }
}