UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'z9YJmE72FtVuZWeSyiq46unvTvU9qDKnyQExxJ+f71k=' 
WHERE 
  key_id = '521d94671341659a8cb7d2843271bf3a5f1565cf3da5f8547fbdd0f6b98ea3e2' 
  AND (
    token = 'z9YJmE72FtVuZWeSyiq46unvTvU9qDKnyQExxJ+f71k=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )