UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'xn1e3KHRhy7c94ZH5UdhJ/gCL1YYQAgmOE0MgBJ0rQM=' 
WHERE 
  key_id = '2c162fff89212d594c3b97107b564eef7aa62d26f1fe65b890875c492f2a8bd2' 
  AND (
    token = 'xn1e3KHRhy7c94ZH5UdhJ/gCL1YYQAgmOE0MgBJ0rQM=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )