message: update cast type
diff: @@ -134,11 +134,11 @@ public:
  nChange.second = (nChangeStr.find("'") != string::npos);
  boost::erase_all(nChangeStr, "'");
  - nChange.first = boost::lexical_cast<int64_t>(nChangeStr);
  + nChange.first = boost::lexical_cast<uint32_t>(nChangeStr);
  nChild.second = (nChildStr.find("'") != string::npos);
  boost::erase_all(nChildStr, "'");
  - nChild.first = boost::lexical_cast<int64_t>(nChildStr);
  + nChild.first = boost::lexical_cast<uint32_t>(nChildStr);
  return true;
  }
  