{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "74222",
    "entityType": "User",
    "nonce": "0xbfd4329ef531a24f4fc4f33e8126a7d17d2e39739018b5bd35059220730a86d8",
    "signature": "0xd65ac73345eab4e5021aba3593d0d2fc29f4a5cc2078b853655441fcd418ecb70daf0bf829dcf0a7301eea97cd931e610f435b14993de5b2398c39c14e27d9d91b",
    "signer": "0xF51BBf2D093bbC94555bc2299Ae53Ce8F7963374",
    "userId": "38277"
  }
}