Sometimes the UUIDs are in human unreadable format(Bin) and you want to find the string version of it. This is the query to do so:
select uuid_to_bin("ec52b511-d139-4b2a-a5d1-f903598055a7"); \\ 0xE552B5AAD1394B8AA4D1F903598033A3
then you can search the table using the result:
select XXX where uuid = 0xE552B5AAD1394B8AA4D1F903598033A3