curl --request PATCH \
  --url https://api.example.com/api/v1/boards/{board_id}/shares/{share_id} \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "permission": "<string>"
}
'

{
  "board_id": "<string>",
  "created_at": "2023-11-07T05:31:56Z",
  "id": "<string>",
  "permission": "<string>",
  "realm_id": "<string>",
  "shared_by": "<string>",
  "user_id": "<string>"
}