UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'a4wxYPTJbuZoljEdWvjeVY04HDkfTCOUP2JT6JQyTVY=' 
WHERE 
  key_id = 'a0524f1665abde16650cb2a155483d963dafb7a8e8737965a7bdd1b8f872f598' 
  AND (
    token = 'a4wxYPTJbuZoljEdWvjeVY04HDkfTCOUP2JT6JQyTVY=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )