{
  "manageEntity": {
    "action": "Unsave",
    "entityId": "974968106",
    "entityType": "Track",
    "nonce": "0xd2e2bab56be11fda687da8b8ecdf454291a8fd3a80b9587feeab9c3c3066ba9e",
    "signature": "0x99c1ce12e000f09caf5890dd6a5bcefc1dd202ba7b7a2953aaa8ae07f005692a091de12cee6931248a00b88a93b5db89585a25987a5bed29a39bb6259cb105ba1c",
    "signer": "0x722b43224Dbc7d6931b3C690696EF03933374bff",
    "userId": "772126389"
  }
}