{
  "manageEntity": {
    "action": "Save",
    "entityId": "1169344021",
    "entityType": "Track",
    "nonce": "0x54dfd2286adbba4f6164233a4c9dd6ec43166da58c6e6f376f9f9de544a2dde3",
    "signature": "0x923551d60b476a6c2080a3a83834856b0f9fd921fb39b6c8e77871a9ac003157790be6d30dc5bc2e4c3baa8fb8445ed7785dba2a86af21d6d5f574a693e57d561b",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}