{
  "manageEntity": {
    "action": "Save",
    "entityId": "69306",
    "entityType": "Track",
    "nonce": "0x442d1fe05392d8809816f0b4e95742bb5f059c36a9c1d691ed677bbf3da0f69c",
    "signature": "0x4412c31d79538f39ec019b5540f91b75862c8aab5a5ca33f1508f7ca7daeebe162bba0d306c895ee60339a17f82d03a7411931b4479d6a1eeeccb768b20661fb1c",
    "signer": "0x59765b22C96E88dA578af23E8611d6ca2dcCd7C9",
    "userId": "377610060"
  }
}