UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'xRykBHS4T98fCuIOko6afzWYNH4OQkca5RJwLgJP+TE=' 
WHERE 
  key_id = '770f13a10c6d45b9477b4a1b43d57b43ac45c1314d2edbb1ad0613929ddae5ae' 
  AND (
    token = 'xRykBHS4T98fCuIOko6afzWYNH4OQkca5RJwLgJP+TE=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )