{
  "manageEntity": {
    "action": "Save",
    "entityId": "1086156102",
    "entityType": "Track",
    "nonce": "0x55dd18a31feafb9bc9465c0f73879c8d787d559487355c9fdba41bde5831f888",
    "signature": "0xf1cfd2c67902fce62a90192035960ac3da6c7a2b9a807c5a2d0727192b4ead384cea470db43548e49b20d2af6cd908ea874e8bfa1246906039943d8cc76901561b",
    "signer": "0x36d29AA5C780341f3b35bDE6c1411a7Abcf8794C",
    "userId": "571117272"
  }
}