{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "166447128",
    "entityType": "User",
    "nonce": "0x761687220f5100703bcc994e58f3eb1c1e0f6b77681f7d914da32240a3193403",
    "signature": "0x7d938dd3ee2d1153eecfdab413935b26699876e0d5cc6f80db8edaea9059663b5b21c946fbaed04a67b509ab3e863d95b5e69024d9969c86ac2f13e6cd4c2b2d1b",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}