{
  "manageEntity": {
    "action": "Save",
    "entityId": "880086",
    "entityType": "Track",
    "nonce": "0xff6f1c0c6a17d44c5408536c13294a097968ebdbabb1e4c121515f810a095a65",
    "signature": "0x16a854755e0914b11c2d6e0904a59ec57c13a8c881b716a30ba28b8dae4f2f2f0d35abe2c52240f6826c758177dc14487ceca4d98a34e8321aaec20be919a68a1b",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}