{
  "manageEntity": {
    "action": "Save",
    "entityId": "343836022",
    "entityType": "Track",
    "nonce": "0x2d68ab226fb4dfc27efd7550689cc09f05d665fdc863236c1ecbcf69c1819ba7",
    "signature": "0x67f381824ae02943699e23f5affc03c9ecb8fa20ae6dbcc6df204997852f6afd744f96f2ea30d0c70cd7326d83e3007e3f594530fb8f6766a27aec78b835458c1b",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}