{
  "manageEntity": {
    "action": "Save",
    "entityId": "92594",
    "entityType": "Track",
    "nonce": "0x67f1d82562a210451e3a4515818f3697dfb640e9f0a0ad2f696d415b9849773e",
    "signature": "0x69c6fcb1fc31528349a826ca5cbe2ea7529cdf8ef8ecded2235a342443909c3032b187daff9eae1a381126472854b8015375eaa0a5748fff131d68cff2f5b8ee1c",
    "signer": "0xbF4F1f4df4779768AfE75515b1552a2Bc5b4Dd32",
    "userId": "100976759"
  }
}