{
  "manageEntity": {
    "action": "Save",
    "entityId": "431464940",
    "entityType": "Track",
    "nonce": "0x058f1f82e3cd47f919fc4a90b73ab0b33fdcec5204513a0747bb2e2475ee2886",
    "signature": "0x68c63e00e05c72acdd7c10a6a376d56b6a4f6150e1b8bd1dce12a4a8c39979f1439e3452d98bfef73b9d2ce5a164e3cd3965151e653dd8a38472f9b14fc4d5831b",
    "signer": "0x06F989586c5477333A41f6057f224Df79903862a",
    "userId": "24240642"
  }
}