{
  "manageEntity": {
    "action": "Save",
    "entityId": "795554",
    "entityType": "Track",
    "nonce": "0x4172d79a4c8e944fda4aa33b4b262705ed29f9cd320db0c9134cabc6ffd870a4",
    "signature": "0x0424dcc4c5041373e2e1d0c902c8c9ef8d3add299ce3b1fe818c2924d7c550147b0e9104168d3cd052fc1a868c8960bc3c75bb4961a698a8ab45278d745019201c",
    "signer": "0x6068Da6B0a791A756931bE32de98D46eBb95890c",
    "userId": "475275462"
  }
}