UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'z21q1F/4BzuSpdr2j1wB38N6BP1VYu6EmZPp81SBWYk=' 
WHERE 
  key_id = 'c21b12ebf743d30c3cd1d873cfd5bdee91934309e13a5724717f5fce09561fc7' 
  AND (
    token = 'z21q1F/4BzuSpdr2j1wB38N6BP1VYu6EmZPp81SBWYk=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )