{
  "manageEntity": {
    "action": "Save",
    "entityId": "162793120",
    "entityType": "Track",
    "nonce": "0xe614e1c4df771eee5200bfdee2a5c2f587e5811bbf0a9bc14bb165e838698702",
    "signature": "0x17b3d060589c6db590ebf71b57ce6a8ce0685f52e3b6fc16c0b0ba4730fd65161bb2f60fc6e5b1296c2dda54fffcaa9317daf1f6dffe43d71045bbc030522e001b",
    "signer": "0xB63c8A7B935b55823f383e8f19B6207FB6b31168",
    "userId": "330374208"
  }
}