bp point activity with custom message

/**
 * Add BP Activity
 * Adds an activity entry when gaining or losing points.
 * @version 1.1
 */
add_filter( 'mycred_add_finished', 'mycred_to_bp_activity', 999, 3 );
function mycred_to_bp_activity( $reply, $request, $mycred ) {

	// Only applicable if the points have not been declined and if BP is installed
	if ( $reply === false || ! function_exists( 'bp_activity_add' ) ) return $reply;

	extract( $request );

	// Construct a log entry so we can use $mycred->parse_template_tags()
	$log_entry = new stdClass();
	$log_entry->ref = $ref;
	$log_entry->user_id = absint( $user_id );
	$log_entry->creds = $mycred->number( $amount );
	$log_entry->ref_id = $ref_id;
	$log_entry->entry = $entry;
	$log_entry->data = $data;
	$log_entry->ctype = $type;

	// The activity text
	// Ex: John just earned Points for commenting
	$entry = bp_core_get_username( $user_id ) . ' just earned ' . $mycred->parse_template_tags( $entry, $log_entry );

	// Add entry
	bp_activity_add( array(
		'user_id'       => absint( $user_id ),
		'type'          => 'mycred',
		'component'     => 'activity',
		'primary_link' => bp_core_get_userlink( (int) $user_id, false, true ),
		'content'       => $entry,
		'hide_sitewide' => true // Set to false if you want it included site-wide.
	) );

	// As a filter we must always return something
	return $reply;

}