Rights Issues are executed within a given period that begins with the announcement of the issue and ends with the distribution of the shares to the eligible shareholders. Additional information regarding a specific rights issue can be found in the prospectus of the event. You can find it on the company issuer's website or the company’s official exchange website.
If you are eligible and you have subscribed to the rights issue of a certain company during the subscription period, all you have to do is wait until the official distribution of the newly issued shares has been completed, in order to receive them in your account. This period can range from 10 days to a month, depending on how the issue is structured.
You can find it in the message that you receive upon the announcement of the rights issue.