{
  "manageEntity": {
    "action": "Save",
    "entityId": "1022682",
    "entityType": "Track",
    "nonce": "0x938cb56b7f34896a1a868ab6643e8772d85da58d94206e64d293b6998c0bbeed",
    "signature": "0x78032b7c5d6ca60d8f0e32ab9a964acb6135d48bd41b5a9a4ae7e8cb6817ce5e2c4efbd64eecd1ec6fa4fc770d057320b08d8c5b6517d6714783166343f896a31b",
    "signer": "0x722b43224Dbc7d6931b3C690696EF03933374bff",
    "userId": "772126389"
  }
}