api-docs/docs/node-tracker/markdown/node-tracker.payloadbuilder.addcontextentity.md
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[Home](./index.md) > [@snowplow/node-tracker](./node-tracker.md) > [PayloadBuilder](./node-tracker.payloadbuilder.md) > [addContextEntity](./node-tracker.payloadbuilder.addcontextentity.md)
## PayloadBuilder.addContextEntity property
Caches a context entity to be added to payload on build
<b>Signature:</b>
```typescript
addContextEntity: (entity: SelfDescribingJson) => void;
```