UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'qOH0Slrgaey3VfXsPFawnddWI0HAEdjUW9ssB0FW9yQ=' 
WHERE 
  key_id = '49e06a8616491bc89faa6b6039d6cd189c64c37f436c6ea628dbf4d6a7b3ca21' 
  AND (
    token = 'qOH0Slrgaey3VfXsPFawnddWI0HAEdjUW9ssB0FW9yQ=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )