UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'gtxHTQ4AfGgTnnCuit2moXhT4ZvPkmPfbbjFs21NFkM=' 
WHERE 
  key_id = '00a26b7d8e6edc5f899c498c38513fd1c66c5a0477eecba18c38d02eb2c1299f' 
  AND (
    token = 'gtxHTQ4AfGgTnnCuit2moXhT4ZvPkmPfbbjFs21NFkM=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )