{
  "manageEntity": {
    "action": "Unsave",
    "entityId": "1230530018",
    "entityType": "Track",
    "nonce": "0x113d2cac8c64dad3edf3388cd02ae815d6b0865c1e7c80db7cc902066185dad5",
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    "signer": "0x4C6208cFFB1eB7681745fCDEFb7f925d154A4281",
    "userId": "63419"
  }
}