UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'pxXh7S0YtNEixoQ6tQtXeN7XyGE5/vDxKhIE7ZA3JzQ=' 
WHERE 
  key_id = 'a1843703b321f39e9877a6bb753683f02673725343d7532aa9ee16117eeefc23' 
  AND (
    token = 'pxXh7S0YtNEixoQ6tQtXeN7XyGE5/vDxKhIE7ZA3JzQ=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )