{
  "manageEntity": {
    "action": "Save",
    "entityId": "160005159",
    "entityType": "Track",
    "nonce": "1786690478662803210",
    "signature": "0x208f626d31f5ded75298c759cfdd9ce330b3fe31e4a12e040f1e38c21b59782f1f04c893151e89853aa002cb10739dd3e9ab2df231ee4509a4afacd096b9097d1c",
    "signer": "0xd30fAF377491796757Ef4C1B0ccA8a407920e663",
    "userId": "451691735"
  }
}