UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'ddxQ1F+NbjFIMvkFM8QHp7akQfSn56/2nTHGceR0VgY=' 
WHERE 
  key_id = '2a7f456ac284a283fbf4bbd094fec2af89ffc7271062816e3fde21a21f6081d4' 
  AND (
    token = 'ddxQ1F+NbjFIMvkFM8QHp7akQfSn56/2nTHGceR0VgY=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )