UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '15k7KkqrvDTKS4DfDCzXeHhW9XnoiTfUQe4MAsXMzCU=' 
WHERE 
  key_id = '0847a4e6ce61bb420d975570ef34f2eb6ed021926f57095b6ad1b35d521809b9' 
  AND (
    token = '15k7KkqrvDTKS4DfDCzXeHhW9XnoiTfUQe4MAsXMzCU=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )