{
  "manageEntity": {
    "action": "Save",
    "entityId": "316293468",
    "entityType": "Track",
    "nonce": "0x98a486f527bcd17cf10fab73439aba4c8171f0976603ef4c9afdeaff9ad609d9",
    "signature": "0xb3c2115951f4b59d7bad5272d08abdad9a549169a2a3b22509f76edff1ad804f7154c6ebe2bfd488b6a5ab1b70a185e812e429aeaa46a3285cc63d35db5e25091b",
    "signer": "0x0fe82f565AaE260D57b8e691c61Fb05fE83B6F81",
    "userId": "614212580"
  }
}