UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'V4DErmbDt/W4ZXfjNtBu1W4TejS4JAsTPvvxJuGKeDw=' 
WHERE 
  key_id = '51a541dbeff71a2f47b8bf887485284436fb7b219fdda16ba0bb13e8f6ba17e9' 
  AND (
    token = 'V4DErmbDt/W4ZXfjNtBu1W4TejS4JAsTPvvxJuGKeDw=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )