{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "74667",
    "entityType": "User",
    "nonce": "0x288019f18a4ff21da7e0efc884342518703aa7c81792bce1d053edf93a232f93",
    "signature": "0x1a4a73e1d08ba812e52f5043a3ac81c330cf67b2caa6c45ad5dd997dcd68d58458fd262dceefb029f7ad5fb18395f850464acad19e1e46b296e1b74204f56a951c",
    "signer": "0x7A4d69fD043239352142140B3861d9A9a89731Cc",
    "userId": "363053902"
  }
}