UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'mym66kdqjg7rHL6xbUgQNQGccRPaowXkSZVChxgC+Ag=' 
WHERE 
  key_id = 'a81d806c17b3a1881168d81ffa79fceff16459faac865c83f5c681621c43d038' 
  AND (
    token = 'mym66kdqjg7rHL6xbUgQNQGccRPaowXkSZVChxgC+Ag=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )