{
  "manageEntity": {
    "action": "Save",
    "entityId": "2092110069",
    "entityType": "Track",
    "nonce": "0xb4792fd41dbc4a922b014179dd53d0242aa88b3d50fd068be4d930ed765fe574",
    "signature": "0xae3522385cd61b457b26b850a6e160442a49f0d27a77d2c36c64ffaa0d9bdfcd6bcf3d2144b989be382918222caa783a06619e6f4942042e4c868a86252a1cb01b",
    "signer": "0x283a6Fd0bE176865B404dfc3B2805D3a2701d62e",
    "userId": "484365174"
  }
}