{
  "manageEntity": {
    "action": "Save",
    "entityId": "1611055196",
    "entityType": "Track",
    "nonce": "0xe19ec642780031d417bd6bd685a023bb2f6ea77060c32b303fccb447507fcc05",
    "signature": "0x63d8f03e6b8cd8d1a474a93989dcc1d094e768b0926b7befc727c34359874f3907e0e19a8cf03750c7f54a4746d939be3a9039ee8b6c682c0c5a9c23ac447af11c",
    "signer": "0x0fe82f565AaE260D57b8e691c61Fb05fE83B6F81",
    "userId": "614212580"
  }
}