UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'MkDoqEZnEE1Bh8BFxr8Po8RiB7UowyGDAjCPTLe2ypo=' 
WHERE 
  key_id = '540db56d1f49dd15b50b6f4180e952dad284767980536014c2fb5deebe89c12e' 
  AND (
    token = 'MkDoqEZnEE1Bh8BFxr8Po8RiB7UowyGDAjCPTLe2ypo=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )