public static String serialize(PutBlobMetaInfo metaInfo) {
    ObjectNode rootObject = serializeToJsonObject(metaInfo);

    return rootObject.toString();
  }
Serialize a {@link PutBlobMetaInfo} object to a JSON string
@param metaInfo the {@link PutBlobMetaInfo}
@return the JSON string representation of the object
ambry-api/src/main/java/com/github/ambry/frontend/PutBlobMetaInfo.java