UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'jYn0gJZq9A1ywAZMUw2o8xZSL7Kf1thJJkKKJ/lddj0=' 
WHERE 
  key_id = '8e12d9b7b770c74a6c8beabf3dc440912bd5e73c336cf466f60c48133c6f8137' 
  AND (
    token = 'jYn0gJZq9A1ywAZMUw2o8xZSL7Kf1thJJkKKJ/lddj0=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )

Query time 0.00044