{
  "manageEntity": {
    "action": "Unsave",
    "entityId": "25629",
    "entityType": "Track",
    "nonce": "0x018b1c84a88a98b59040e325149828ff5ade8cc013df62d76f907268f3b96530",
    "signature": "0xb1e9cee80b5df27bb954e6d28f066cabf119dcfcd25a7125e6a92a533d0c27f27415c0beccb5da48626ce21673e29daebc64743c073190310f217338af52509c1b",
    "signer": "0x44BAdCFCf42113CbB67f519e4efa576B336f9bf7",
    "userId": "136844578"
  }
}