{
  "manageEntity": {
    "action": "Save",
    "entityId": "1732046245",
    "entityType": "Track",
    "nonce": "0xbff69b18b56131079cfb0c1168be008dedd6f6e31338f24688a506d87402d124",
    "signature": "0x22cfdb4735265efcea39aa4be87dfb290c195b8ab17026a3f5e52acdfc118cbf2fdcdcd95f19b4135fdc705aec7289f06a4b8bd9344436b946f77a67da0728f51b",
    "signer": "0x283a6Fd0bE176865B404dfc3B2805D3a2701d62e",
    "userId": "484365174"
  }
}