{
  "manageEntity": {
    "action": "Unsave",
    "entityId": "1203612643",
    "entityType": "Track",
    "nonce": "0xa53e4026b6de932f189ee5c3190a1988b8e578a114b268b75095da44f866657e",
    "signature": "0x82f87e7f31459de94ead2b5704438a428148cf75a7bea0d73114fe80f672aa87386bff0d980a063c875f91e432a3d6df7d39fb8b55728c41a4e8dae81428a3c21c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}