{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "843",
    "entityType": "User",
    "nonce": "0x64135313714742228955eab132039fc31f1606678fb81a79f612ad415ae0fc28",
    "signature": "0x523a20793773e212d16fdfc189b6dc7feebe74a58ad38e74d3d75221fe47a3f030e51b577f71ac9f13fbb693b46007ed3035eb7cf8f02d007c673388ff66c8361b",
    "signer": "0xF51BBf2D093bbC94555bc2299Ae53Ce8F7963374",
    "userId": "38277"
  }
}