@JsonAnySetter
  public void withUnknownProperties(final String key, final Object value) {
    LOG.debug(
        "unknown property - {} with value - {} and type - {} caught during serialization",
        key,
        value,
        value != null ? value.getClass() : "NULL");
  }
utility method to log unknown properties

@param key key for the unrecognized value
@param value the unrecognized value
datatypes/src/main/java/org/hyperledger/besu/datatypes/StateOverride.java