{
  "manageEntity": {
    "action": "Unsave",
    "entityId": "988034267",
    "entityType": "Track",
    "nonce": "0x90980009f78dd184cfe5d3b35406c3d057860dabd109617a728fba82c11c479e",
    "signature": "0x3959d5c775412db96b403bad3facbcad21b55f2b29cc89c69224ec1e0d59b4f45da58d3805437e22054393c0988852e642e9d46c6e60129bcfbdfc4795b22ae01c",
    "signer": "0xbC21900d8f88d750CAcF48dB76bE331d4b454f0a",
    "userId": "161995802"
  }
}