{
  "manageEntity": {
    "action": "Save",
    "entityId": "1007277296",
    "entityType": "Track",
    "nonce": "0xd3a5778d10ef1db642668b897733b78153b9782540d4735f2df605e0f8fbd43c",
    "signature": "0x27df8a2788c6cd874587a742a4357c23a64c2256a7584614f083195f308806b92a02dd121347a50b8bcc557c5bc84a9a27c3fcc69191f824de090c1edf66d75d1b",
    "signer": "0x283a6Fd0bE176865B404dfc3B2805D3a2701d62e",
    "userId": "484365174"
  }
}