{
  "manageEntity": {
    "action": "Save",
    "entityId": "106130267",
    "entityType": "Track",
    "nonce": "0xe8fd3e78cc7460d72f37bc61a3c601f1aef7f21c6d278768b354bed122e9f93c",
    "signature": "0x9442a26c45f45622866511def2c7bca1728a1cac7aa7670c5dbde200fd3019f6354dadbf4f4fafd62d1b51f7b61cf023ce86325eb9a2d9a85d7319feff8165071c",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}