{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x2b2455afd21e120d8e5e8516dd70b75b5e5d670043538928fbe392ab0a7ac44b",
    "signature": "0x40ed7b8fbfde0ccc90c16e4b0ab71b9f3482d4b0d6a8b2860df7078d978a056f1879a9b835d6ffa5e76056622517198bb800537cd86ec3e7ff05ab5e596056411c",
    "signer": "0x8f2ebBA3522f46F14A1fCDe5312c7B9EA0E59e15",
    "userId": "735463452"
  }
}