{
  "manageEntity": {
    "action": "Unsave",
    "entityId": "1309316086",
    "entityType": "Track",
    "nonce": "0x8a6374503daee108cd566c29a21c56974deb1262333604666e0a0bb9c4adcf72",
    "signature": "0x2741a311c5b6583ca9d607e07174cb38a21ce8f24c24e2b31017944e87f0c72352a100e949d927d9c64c856619edfde26917532cb722eec34624ba4872c610331c",
    "signer": "0xC59f7055B078B1Ee57c271E19BE5Dd7033FD64f5",
    "userId": "950751701"
  }
}