{
  "manageEntity": {
    "action": "Unsave",
    "entityId": "1069940",
    "entityType": "Track",
    "nonce": "0x71263f2a24163fe804779a32226d202c5a30cebac69f9bbd05fb5a5bf00828da",
    "signature": "0x738d152eaba45caf97c01a85d9cf0051f2a391fdd1ed2d261f8895d9207d0db5055b5b88afa176927415eff11bce00ab46bc968ec4155657643b4afb016930691c",
    "signer": "0xE7D37531a757aEaf8B2c8037a79C03819edc20Dc",
    "userId": "870684573"
  }
}