{
  "manageEntity": {
    "action": "Save",
    "entityId": "1152673812",
    "entityType": "Track",
    "nonce": "0x53e10db34044095aefd2873cdae4fc53dcb4e58fae3ddfaaf4e4b091609885c8",
    "signature": "0xd9d1f36f9e47289e852ec34c200164f18f7da803dcc1f4ab8f3406ba360eb8b00c0e32c04a4bb8aee29188e3aadff2b2d2367ade5751153cb30627a734d4e5d81c",
    "signer": "0x0fe82f565AaE260D57b8e691c61Fb05fE83B6F81",
    "userId": "614212580"
  }
}