{
  "manageEntity": {
    "action": "Save",
    "entityId": "464312081",
    "entityType": "Track",
    "nonce": "0xb1d9ac9af6dbb308d125f0608cdc0fb56947e51ad44d568d041353b1ec7ef60a",
    "signature": "0x82a9b5c1a96f4fa3b9ce4ce3e3effd95bd125606e0948872e94335bad7657d2a5152f46bea92a883149b9dab039a4a5fcb2675a9aec29c0184b514be606877df1b",
    "signer": "0x05aba01c97C4F182D989670622abE9c797782dD2",
    "userId": "508263176"
  }
}