@Override
  public String toString() {
    return PutBlobMetaInfo.serialize(this);
  }
Deserialize a JSON string to a {@link PutBlobMetaInfo} object.
@param metaInfo the JSON string representation of the object
@return the {@link PutBlobMetaInfo}
ambry-api/src/main/java/com/github/ambry/frontend/PutBlobMetaInfo.java