{
  "manageEntity": {
    "action": "Unsave",
    "entityId": "827956867",
    "entityType": "Track",
    "nonce": "0xfe1bb1004ff5121e68bd59899ea54a2f53fcbce10250a8bd967724073bff6f74",
    "signature": "0x14a8f57bc803284ab7c829c1f488c20452dc1d8ac2bfb8d62bf8469fe8a1d5b953a1a7c10a8f79844fe3b2ae74a7e4fc7a1a1131cc91392e35df4ca83af06ade1b",
    "signer": "0x44BAdCFCf42113CbB67f519e4efa576B336f9bf7",
    "userId": "136844578"
  }
}