{
  "manageEntity": {
    "action": "Save",
    "entityId": "82316798",
    "entityType": "Track",
    "nonce": "1786798646261905518",
    "signature": "0x2d498d2c0cda034e3d47253648a7ac714689db685e6c7bd0d96c572a5c2416c0477ff50bc518f7cb6ecf929890a000c29425435554cfbf3e6e5faf8fd51a9ed11b",
    "signer": "0xd30fAF377491796757Ef4C1B0ccA8a407920e663",
    "userId": "451691735"
  }
}