{
  "manageEntity": {
    "action": "Save",
    "entityId": "736952026",
    "entityType": "Track",
    "nonce": "1792308153569991115",
    "signature": "0x7da4ce55c75b76b544239b674705c89d3ed13fc1634945c6c41abd640c5c67dd7f31018132c4834e505778f74facbe784e58f40d2a635ec2b3c344ecbf6599b71c",
    "signer": "0x512F9723ECbDB6Dc537A671b3D2fb35CC68017a4",
    "userId": "105562689"
  }
}