function update_metadata_by_mid( $meta_type, $meta_id, $meta_value, $meta_key = false ) {
  global $wpdb;

  // Make sure everything is valid.
  if ( ! $meta_type || ! is_numeric( $meta_id ) || floor( $meta_id ) != $meta_id ) {
    return false;
  }

  $meta_id = (int) $meta_id;
  if ( $meta_id <= 0 ) {
    return false;
  }

  $table = _get_meta_table( $meta_type );
  if ( ! $table ) {
    return false;
  }

  $column    = sanitize_key( $meta_type . '_id' );
  $id_column = ( 'user' === $meta_type ) ? 'umeta_id' : 'meta_id';

  
/**
 * Short-circuits updating metadata of a specific type by meta ID.
 *
 * The dynamic portion of the hook name, `$meta_type`, refers to the meta object type
 * (post, comment, term, user, or any other type with an associated meta table).
 * Returning a non-null value will effectively short-circuit the function.
 *
 * Possible hook names include:
 *
 *  - `update_post_metadata_by_mid`
 *  - `update_comment_metadata_by_mid`
 *  - `update_term_metadata_by_mid`
 *  - `update_user_metadata_by_mid`
 *
 * @since 5.0.0
 *
 * @param null|bool    $check      Whether to allow updating metadata for the given type.
 * @param int          $meta_id    Meta ID.
 * @param mixed        $meta_value Meta value. Must be serializable if non-scalar.
 * @param string|false $meta_key   Meta key, if provided.
 */
  $check = apply_filters( "update_{$meta_type}_metadata_by_mid", null, $meta_id, $meta_value, $meta_key );
  if ( null !== $check ) {
    return (bool) $check;
  }

  // Fetch the meta and go on if it's found.
  $meta = get_metadata_by_mid( $meta_type, $meta_id );
  if ( $meta ) {
    $original_key = $meta->meta_key;
    $object_id    = $meta->{$column};

    /*
		 * If a new meta_key (last parameter) was specified, change the meta key,
		 * otherwise use the original key in the update statement.
		 */
    if ( false === $meta_key ) {
      $meta_key = $original_key;
    } elseif ( ! is_string( $meta_key ) ) {
      return false;
    }

    $meta_subtype = get_object_subtype( $meta_type, $object_id );

    // Sanitize the meta.
    $_meta_value = $meta_value;
    $meta_value  = sanitize_meta( $meta_key, $meta_value, $meta_type, $meta_subtype );
    $meta_value  = maybe_serialize( $meta_value );

    // Format the data query arguments.
    $data = array(
      'meta_key'   => $meta_key,
      'meta_value' => $meta_value,
    );

    // Format the where query arguments.
    $where               = array();
    $where[ $id_column ] = $meta_id;

    
/** This action is documented in wp-includes/meta.php */
    do_action( "update_{$meta_type}_meta", $meta_id, $object_id, $meta_key, $_meta_value );

    if ( 'post' === $meta_type ) {
      
/** This action is documented in wp-includes/meta.php */
      do_action( 'update_postmeta', $meta_id, $object_id, $meta_key, $meta_value );
    }

    // Run the update query, all fields in $data are %s, $where is a %d.
    $result = $wpdb->update( $table, $data, $where, '%s', '%d' );
    if ( ! $result ) {
      return false;
    }

    // Clear the caches.
    wp_cache_delete( $object_id, $meta_type . '_meta' );