UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'pjFL8w4mgO1qhrC8/bqNhZVxsOUeuLRNEtcrPd21d4k=' 
WHERE 
  key_id = '835b19646c27a54b878ceff9f6e0be1626c4b28d439c90cc571504d686509d49' 
  AND (
    token = 'pjFL8w4mgO1qhrC8/bqNhZVxsOUeuLRNEtcrPd21d4k=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )