{
  "manageEntity": {
    "action": "Save",
    "entityId": "92181232",
    "entityType": "Track",
    "nonce": "0x7fcacdb092ef52e735ef50d14da4a78e13ca5feb73286ae768447e2e67872279",
    "signature": "0x232a9f65b4f5a06b7e1459b40b2d4d644877273d142103b74ca3433a05a3825866ac5e9a499743bf2b7d7227174cc7d057ce530e56fd2eeb3917de24aba757b11c",
    "signer": "0xe5223Dc6E411A24e22DcF917955e97a8D7479d0c",
    "userId": "981716494"
  }
}