{
  "manageEntity": {
    "action": "Unsave",
    "entityId": "1730675475",
    "entityType": "Track",
    "nonce": "0x761fad96339783b3dea684e4fd6fb26248bb11e45d8df89e639e7d1a51277eb2",
    "signature": "0xb83c2610c534cf8fb89b8d36d8bb1807123f9dfef8b21473fdc2cf3d1b0dfd323b04ec0c0ac68f834f3e7cbabd4880b598ed0fc2921b24ca6092cba31b9f28971c",
    "signer": "0x16128b1aCCc38edDCCd28B4d84aA3bbD797Cfaa5",
    "userId": "361266"
  }
}