{
  "manageEntity": {
    "action": "Save",
    "entityId": "1086920",
    "entityType": "Track",
    "nonce": "0x96ebfe84b3450774cc766fb3d408c6a78dfde2e6a0c749b8e5f906bfaba33152",
    "signature": "0x37c7bbaa8cd116cae048ac8badc30a9c6cb1d7a5bcfd116d7389408deef4bbee6f57daea47d00f6878ef58cda83119546d16c9f9262e1cb938f91be17bac200d1c",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}