{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "227991193",
    "entityType": "User",
    "nonce": "0xc7d733758320fbd21115d0603cb70c33755a83539bfa4de96c44809e74363f70",
    "signature": "0xcf7f773eea46f3cd5b43558590cc78f93bbf39c630553e7dd575486f787885e72b44f8633cf40f2d2b6c53c45d7c1ffbf644bfc2319a9dd0319c5659cfc008141c",
    "signer": "0x0E6Ef8dF2F401D8918d603B82ef321D94A721556",
    "userId": "648802251"
  }
}