{
  "manageEntity": {
    "action": "Unsave",
    "entityId": "183649",
    "entityType": "Track",
    "nonce": "0x81634aa695ad7f1358895a8d6d20bad3738757ccf6715109baca4f36a4023318",
    "signature": "0xf2a9642a1dbc079807937bf81f4590ade24c8d1a52eb72d4297110508b752af935b3cc120365c5db88b4bcea44636586bf17a806c29e188365f8e4b19c337b371b",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}