{
  "manageEntity": {
    "action": "Save",
    "entityId": "79261",
    "entityType": "Track",
    "nonce": "0x2a19b5d43a456a332266d1092f6d63bd8a4f96c503eae0058f0d8500950d7d81",
    "signature": "0x889f8b3ca053317e36062d0eb41f105b588bd907a90b10fa132eed2f20b7f01f75f6a95489026d891604d9afba971be3fad256443ed33c9b69f179719536aa1e1c",
    "signer": "0x03e9Caf2aeac5a0F0e4Be56410d67A4148D38Fd4",
    "userId": "47828528"
  }
}