UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Tmoz1hO4U7vzeg7l2pHA9gJEPRMqK8+EGdQFa4VtL5o=' 
WHERE 
  key_id = 'cd948653e2a1b351228b2906f81885fc6afe91602895c73d539ea1e40ac0e6e6' 
  AND (
    token = 'Tmoz1hO4U7vzeg7l2pHA9gJEPRMqK8+EGdQFa4VtL5o=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )