UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '/0GHR3/GpQb89Jg7zhWrZy9Vs7olLl7jvNtUOiUDfUk=' 
WHERE 
  key_id = '51f4163f3ef68bf1bfea17aa7540dc81c182278288292ce675f6d53b24612f3f' 
  AND (
    token = '/0GHR3/GpQb89Jg7zhWrZy9Vs7olLl7jvNtUOiUDfUk=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )