Convert 10 digit unixtime to 13 digit

1

I have the following mysql query for Grafana

SELECT
processingFrom AS "time",
inserts
FROM runs
WHERE
$__unixEpochFilter(processingFrom)
ORDER BY processingFrom DESC

Problem is it shows unix time as 10 digits and not 13 digit, how do I change this?

SELECT
processingFrom AS "time",
inserts
FROM runs
WHERE
processingFrom >= 1578945691 AND processingFrom <= 1581537691
ORDER BY processingFrom DESC