{
  "manageEntity": {
    "action": "Unsave",
    "entityId": "824506957",
    "entityType": "Track",
    "nonce": "0x774266f2b2f866369fe0ca4a1539c944f594795d36ed7c1c7248e8762a50e1ab",
    "signature": "0x00046e0622ee4593dfb7d647895a214939b372942672fc8a25c69ca231386536670e28eb3737218c89b9f57f9bb746f85d4098e78d0852467c8ed1dc0af4b4411c",
    "signer": "0xE7D37531a757aEaf8B2c8037a79C03819edc20Dc",
    "userId": "870684573"
  }
}