{
  "manageEntity": {
    "action": "Save",
    "entityId": "717327779",
    "entityType": "Track",
    "nonce": "0x80e2c3f806cda1861ce945093933d29534bf8b897b5fad8953d90c308118487d",
    "signature": "0x34ffd98ceaffe4c12b4918824dbf82a51ad81464ad3fffbb49a9690792d01cd32de130e7fe2e962cf16a751336b63d80e7ffadfc553f77c648ccf093bbd299d31c",
    "signer": "0x283a6Fd0bE176865B404dfc3B2805D3a2701d62e",
    "userId": "484365174"
  }
}