{
  "manageEntity": {
    "action": "Unsave",
    "entityId": "1879101652",
    "entityType": "Track",
    "nonce": "0xeea975394eabf271849cb42a7c73c8316668fa6df25bba75497611bf00f5ea26",
    "signature": "0x79931b1d726b06b15f5f3e773143fc78bdc957169dd21465200716420ddb1e391865687bbca4867ad63bf8340ed1ad8c4fc9cf70da92bbbbb52fc3b6136277491b",
    "signer": "0x73317E9D44b6E1b7d146760b12dc5546Cd140ED2",
    "userId": "683609933"
  }
}