This API is used to accept a project invite

<table> <tr> <th>Field</th> <th>Possible values</th> <th>Mandatory/Optional</th> </tr> <tr> <td>project_id</td> <td>384f6666-3b7d-4381-b5b5-bfc4c3dedbc8</td> <td>Mandatory</td> </tr> <tr> <td>user_id</td> <td>3bdc0bd9-fc46-433b-ac21-05d555566c46</td> <td>Mandatory</td> </tr> </table>

{
  "project_id": "384f6666-3b7d-4381-b5b5-bfc4c3dedbc8",
  "user_id": "3bdc0bd9-fc46-433b-ac21-05d555566c46"
}