{
  "manageEntity": {
    "action": "Save",
    "entityId": "1062405",
    "entityType": "Track",
    "nonce": "0xacb0df4f8764b456a122503edd0627feebc0b8653c03eee1d30caa45a74a719f",
    "signature": "0x962cb098c641c2607a3a8c865db352bb7e74538a9f1fecca9ca988b259308b6b5b2ec08e579eed35d8997c68c9b000f1e39b3decd7ac47d00904168ef8f2f1ff1c",
    "signer": "0x283a6Fd0bE176865B404dfc3B2805D3a2701d62e",
    "userId": "484365174"
  }
}