{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x8bd88408997b0c520d6db4963253c52b96f281efa1e0496a05963a1f561ff414",
    "signature": "0x7aedb15758eeba98c503dd63e01ac513aa91b05b25ed37829b169ebeb6d5a261118e5324d9af0d6fd209ea1f99a97417774561ff2723fba7300593e40debe1661b",
    "signer": "0x63d394E88B78FF653F4FCeB0AC74Cf5b064dfC34",
    "userId": "633246973"
  }
}