{
  "manageEntity": {
    "action": "Save",
    "entityId": "109090",
    "entityType": "Track",
    "nonce": "0x5a6c24531d4927b1d669c3833bcec415f6854abcc46e27ac07d7509663bb06c7",
    "signature": "0xa0538f03c6b1d1671f058105fc2bbe5b2e01f9f181d81ae58b30acf0bb47dd9862568c861eb23be2c87c79739704b6b76a5e31a296b4d2c9cb77ed32ec7d915e1b",
    "signer": "0xCedE64dcD8b0FdEDBdADF4b0ba433797eD6301c9",
    "userId": "638733607"
  }
}