UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 300, 
  token = 'P0g8Xef5O9/rXHIo5g8GlAspeK1vzm0JBhDy3blZWY0=' 
WHERE 
  key_id = '8a8c857a6b005907e3d0f9597395ca123668fcf083180bc70989b2bff8deead3' 
  AND (
    token = 'P0g8Xef5O9/rXHIo5g8GlAspeK1vzm0JBhDy3blZWY0=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )