{
  "manageEntity": {
    "action": "Save",
    "entityId": "1316410670",
    "entityType": "Track",
    "nonce": "0x81ad826c7e0a0aa65c1874021c10f9073ea466de5ba482b2d9fec916f76862fb",
    "signature": "0x1109bfd26c87ac31ba3c85c979d649438836e3a324bf222eeb04eeb126e75efa7097a90a58ed5c1ec76e1cfbe2c5c5403f6b093c8a9e43ca88a4b133bb4f037e1c",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}