{
  "manageEntity": {
    "action": "Save",
    "entityId": "2063349793",
    "entityType": "Track",
    "nonce": "0x856badf59a5edda9d68254f4b54eebb099ab9b446d12e83282570e81eba58c9d",
    "signature": "0x4cc95f83c136cc003739b41d938cc164141924ebcc40e37c8abd75b3a7050e5a0709e185f87a75806162b23bde50151250054ad8958001d8762d6d363b931e2a1c",
    "signer": "0x0fe82f565AaE260D57b8e691c61Fb05fE83B6F81",
    "userId": "614212580"
  }
}