{
  "manageEntity": {
    "action": "Unsave",
    "entityId": "496334497",
    "entityType": "Track",
    "nonce": "0xfc04afd66ed0ef79f4540c7ece93fd7c75c45ea54fd084357fbdc524728f024e",
    "signature": "0x03e09b3257781a7a731abec3aa591afe0549bb235445d3cf72fe8125108bb239003cd0b5d84eb052f7c6b1273f7e6a44aac7f6765d6f302a101f0c6c34ec8d261b",
    "signer": "0x8dE618Aa8371041f23D771609990F5D2Ee1aDFDB",
    "userId": "688960593"
  }
}