{
  "manageEntity": {
    "action": "Save",
    "entityId": "127444932",
    "entityType": "Track",
    "nonce": "0x162f8836876b5412a5ae92f87e03dbbc90b8c08fc889c752e93ba638d8e924f3",
    "signature": "0x2c7399821deeceea1e5da9d73df418ad446830d7114b8a32229d346a4e14a18c6f3bc5a59209de5a513e2034ace42fb1a19287d32b2af87190ab655b9a71f3551b",
    "signer": "0xDC5D8e6d43489811098d4d3D31fB7D6585c9Bb31",
    "userId": "735980234"
  }
}