UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '8aO1He39+YL8urwsvcagWjT4kqerVFMaxqzrT+pnqis=' 
WHERE 
  key_id = 'a4f19e5c1234222a847314693563600d1bce5773bb4082725e876a6e554f1923' 
  AND (
    token = '8aO1He39+YL8urwsvcagWjT4kqerVFMaxqzrT+pnqis=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )