UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '21cXVnvS7+17LSwO5cVyvSmQmWJLAGH/uEIPgodFfXA=' 
WHERE 
  key_id = 'a646e2e926d7a11d7f4907f36331cf925744988a65588c4e36755bef7ebaaccf' 
  AND (
    token = '21cXVnvS7+17LSwO5cVyvSmQmWJLAGH/uEIPgodFfXA=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )