UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'U6GWi4FKqEbzRpuXwyJZLqHj63E5IyhTpWkmL1vCjHg=' 
WHERE 
  key_id = '8c3c5d182d1a56121da2503a3fa257fb4251bd5549d01c341ba219867f148b4a' 
  AND (
    token = 'U6GWi4FKqEbzRpuXwyJZLqHj63E5IyhTpWkmL1vCjHg=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )