UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'P6JwKbzM0oZlzg5fI6llQs/Fw+8BKdsDLNv/GWvodGI=' 
WHERE 
  key_id = '547d145db6ce83de9b7a4552ffdba7d9c6aafc590943766470958d114b0f5e66' 
  AND (
    token = 'P6JwKbzM0oZlzg5fI6llQs/Fw+8BKdsDLNv/GWvodGI=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )