UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '5KLlGlK5DDQ6sZ0tiIPp8BTE+onu+Ak+vWHGQY9T5K4=' 
WHERE 
  key_id = '53685e274d7fd12533bbf00b002c4a1b5c42646a2a29576fb0014d351e4a58d5' 
  AND (
    token = '5KLlGlK5DDQ6sZ0tiIPp8BTE+onu+Ak+vWHGQY9T5K4=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )