{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x22e125ed591a889833da362cb55915eaeb41e85c17b47f355077ba8f206e7354",
    "signature": "0x57c5c4a3589e7ebd557e85f57e5534e9311c3355b01b596218e8b78cce884c2b76b7d01d144cd77671505062eb1d8c299fcc233c048e85db733fae09acc8b7c11c",
    "signer": "0x63d394E88B78FF653F4FCeB0AC74Cf5b064dfC34",
    "userId": "633246973"
  }
}