UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '1tC1bdIWJkIH7tmGRer5qRfddwdOr1ZSS9iGOX51cAQ=' 
WHERE 
  key_id = '6a1dfab7f41ba60f11cc90e08a146427f548659c217b93af3536d14d05ddf8f1' 
  AND (
    token = '1tC1bdIWJkIH7tmGRer5qRfddwdOr1ZSS9iGOX51cAQ=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )