{
  "manageEntity": {
    "action": "Unsave",
    "entityId": "1432701641",
    "entityType": "Track",
    "nonce": "0x63050f3cab4d0f7401358cfc670f64645ae7a63b12143baf6dc61a14c5e37cd9",
    "signature": "0xfbce453032b1a8662a2429bbd35a2ab98b31b1b59c6c1b8b8f49ba839785c3701d3d12013ca972558909e7d170e49b0c3bd9e8c3fc9f2fe2991f15bb61c464581b",
    "signer": "0xd12A323399559A3773F865c8F21031bc39c29135",
    "userId": "219968466"
  }
}