{
  "manageEntity": {
    "action": "Save",
    "entityId": "2085584437",
    "entityType": "Track",
    "nonce": "0xa8901c153ed0eba333009bcf7f671f46b63f804461c004acb29260a24bba7d2f",
    "signature": "0x225abccca548243352aea01d11f27bff25f3b5cd3dec275f859b540bf95d7f56650c4133de3f0b35081f1956e0c0ff8f4c6829581051fc5ce815c3db7d737c091b",
    "signer": "0xDC5D8e6d43489811098d4d3D31fB7D6585c9Bb31",
    "userId": "735980234"
  }
}