UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'B50CiAcHrjUzi4YZNUnALVZdBy73isqggmgZZWa6GpI=' 
WHERE 
  key_id = '784c136c7316f9deaf1f07c78e479fdfb5bb0f9f249f2ac453e6f5da80b0d8f7' 
  AND (
    token = 'B50CiAcHrjUzi4YZNUnALVZdBy73isqggmgZZWa6GpI=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )