{
  "manageEntity": {
    "action": "Unsave",
    "entityId": "2069144177",
    "entityType": "Track",
    "nonce": "0x928b29fd7ffed21a5c93c0b57c999e4945937230a8b9d53572a87b1ed7415fdf",
    "signature": "0xa317ee3fd4d2f6352362a9825e12503721435a2a6248ea04fad8ae85388ebc090b8604a15ae7f4a0068f2863b4e8c10633d7880d1d724a6270bb2983eec0c3a61c",
    "signer": "0x44BAdCFCf42113CbB67f519e4efa576B336f9bf7",
    "userId": "136844578"
  }
}