@Override
  public boolean equals(Object o) {
    if (this == o) {
      return true;
    }
    if (o == null || getClass() != o.getClass()) {
      return false;
    }
    NamedBlobListEntry that = (NamedBlobListEntry) o;
    return expirationTimeMs == that.expirationTimeMs && Objects.equals(blobName, that.blobName)
        && modifiedTimeMs == that.modifiedTimeMs && blobSize == that.blobSize && isDirectory == that.isDirectory;
  }
@return this list entry as a {@link JSONObject}.
ambry-api/src/main/java/com/github/ambry/frontend/NamedBlobListEntry.java