{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x3a94ba9b1e07f2accb339f628aa0dfcfbc65030a95bab1f9227244dda333b9d9",
    "signature": "0x65afeef23636b134bd6e321c1fee0d95c63771a95f900a7d6c03b4695c18b3ab3197e0cf3a770703852cfa2fe021429dd7185c059c0a1c4259ae2c825954a68e1b",
    "signer": "0xA97F305bF7cc0c77ec72417Ec298aD05f2d6E750",
    "userId": "754738206"
  }
}