Add a permission

curl -X POST "https://api.live.paisr.tech/v2/access-tokens/{token_id}/permissions" \
  -H "Authorization: Bearer <access_token>" \
  -H "User-Agent: MyApp/1.0" \
  -H "Content-Type: application/json" \
  -d '{
  "scopes": [
    "invoices.read",
    "invoices.write"
  ]
}'

{
  "success": true,
  "message": "Request was successful."
}