{
  "manageEntity": {
    "action": "Save",
    "entityId": "1072896722",
    "entityType": "Track",
    "nonce": "0xfdb16255c2ef798a7ce2f626f75915204bde1652030e23f2692cc94ab62ed72a",
    "signature": "0x087bd0af02df4a5a79198be1ed75dc4abd2c55f01354e8ea5e80e55e887bcc7404c6adc57b89fe6efa8191b2c8d1f90762a2d7ed518b4c956d53802eb861a5551b",
    "signer": "0x0fe82f565AaE260D57b8e691c61Fb05fE83B6F81",
    "userId": "614212580"
  }
}