{
  "manageEntity": {
    "action": "Save",
    "entityId": "2024046454",
    "entityType": "Track",
    "nonce": "0x85941341843c804abb9de116721c4f51760bf66ef57624460581842fb6f9ae7f",
    "signature": "0xf6e714f8f1620a0b00008bc78e23b69c3ff5036f3fec5c46ffac5009c1772bc318c4de89b91d2d26ee27263d1c4d3149196abaa5a3b52c4823d8dbb7234e8ad81c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}