{
  "manageEntity": {
    "action": "Unsave",
    "entityId": "1212081574",
    "entityType": "Track",
    "nonce": "0x7182632141b005fa20b7ed199a0f9bdb0ef82fafb1059bf965bb17216545a766",
    "signature": "0x06eba59485b23d6a2bb881c4b8bf4407674084d38e4fa3e5b438ab5c0a4e0d363d07287f93896f2ca5725f6ffde18ab2737c50765575c1e688ee067e000571a51b",
    "signer": "0xccd1a8cE15F6B7aeA0D18DC514047d362d3c4677",
    "userId": "471791909"
  }
}