UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'ygxFr2HrnD7SorSyWm5DdnXLXHJgNhKNa2pRYAkBk1I=' 
WHERE 
  key_id = 'c1a91e141bc166c52769653dfcaefc628cd82e98f67a2d5c9df50d16a76e3162' 
  AND (
    token = 'ygxFr2HrnD7SorSyWm5DdnXLXHJgNhKNa2pRYAkBk1I=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )