UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'PCud6aW/nMKHTF3WFIIcaW0Jm0C1lx+WcD6SOKmWBO8=' 
WHERE 
  key_id = '1f81b683a48e33b744856363e6ab87a2ff28ceaf833e1d246741ef95f26c1ab1' 
  AND (
    token = 'PCud6aW/nMKHTF3WFIIcaW0Jm0C1lx+WcD6SOKmWBO8=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )