{
  "manageEntity": {
    "action": "Unsave",
    "entityId": "1932964718",
    "entityType": "Track",
    "nonce": "0x879ff67cf89f404214e6528318405df6d7563a4affa65855cddc314c5c9a31de",
    "signature": "0x1c373132136a214384c1b2109efbf9bf0a8378a34f4e10038b081e5309bdd03453038c92d46bc9ede3a05c15d10e34ec1fec676e81da8a2ff84dc6196718b3371c",
    "signer": "0x3d77b82105BD37C39Db236CbD41615f50DF69d68",
    "userId": "520461668"
  }
}