UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'zP+Bjm9Kw+8huCxQb0XDYjBBC41TaKxIcO2wwOlpuOM=' 
WHERE 
  key_id = '676bcbacab558a26a114b6da7e9b95b0c5e262fafa2c198a34c7d3394ac50201' 
  AND (
    token = 'zP+Bjm9Kw+8huCxQb0XDYjBBC41TaKxIcO2wwOlpuOM=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )