{
  "manageEntity": {
    "action": "Unsave",
    "entityId": "1869015820",
    "entityType": "Track",
    "nonce": "0xe0fb76018d1501396f997c51857ef5908864538065bbc775db0ac92ac285a700",
    "signature": "0x7ed0da9d3e9a15b082ff70e74150afb76bd7cbdf8b89fad7b947caf9011f512e122526b21f8da0b9241eefbf44cc3cb7a97e2b266f792b11d782c088ba8e506f1c",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}