UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Rn8KAJArFGCyMmCe7cJRt3GlwTqqFR6eV0vibnqCAS8=' 
WHERE 
  key_id = '3ef9f954f4482b2a722201e36e33be7188f5e3fdea3eb1759005d8cfa76d1909' 
  AND (
    token = 'Rn8KAJArFGCyMmCe7cJRt3GlwTqqFR6eV0vibnqCAS8=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )