{
  "manageEntity": {
    "action": "Save",
    "entityId": "1367961426",
    "entityType": "Track",
    "nonce": "0x86791e996ebb5b5f1c7b4d360635446febe61e9416bba18a236e4b20221f344e",
    "signature": "0x6dd0fef36388c6ece519c14c2a16514f402005a29cef9373a041abe1977edb3476501bff0cfb7f0844db3f3c3fcbe7855a6aa910757cf638ea5e84bfb69a3bc11b",
    "signer": "0xbe916820AF010608151C80f3A74F7c83218094B2",
    "userId": "881446128"
  }
}