UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'rguk7P/ROXzxtKJx2fF1ga60VHpi8NcKyei2vGk7btM=' 
WHERE 
  key_id = 'e7f7dd76d2079ef1e106f10a9d8b783b72f9fff9bfa2773bcf51122d9ea1a5a8' 
  AND (
    token = 'rguk7P/ROXzxtKJx2fF1ga60VHpi8NcKyei2vGk7btM=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )

Query time 0.00033