| Subscription | 0..* | — | Server push subscription criteria |
| .idΣ | 0..1 | String | Logical id of this artifact |
| .metaΣ | 0..1 | Meta | Metadata about the resource |
| .implicitRules?!Σ | 0..1 | uri | A set of rules under which this content was created |
| .language | 0..1 | code | Language of the resource content Bindinglanguages(preferred) |
| .text | 0..1 | Narrative | Text summary of the resource, for human interpretation |
| .contained | 0..* | Resource | Contained, inline Resources |
| .extension | 0..* | Extension | Additional content defined by implementations |
| .modifierExtension?! | 0..* | Extension | Extensions that cannot be ignored |
| .status?!Σ | 1..1 | code | requested | active | error | off Bindingsubscription-status(required) |
| .contactΣ | 0..* | ContactPoint | Contact details for source (e.g. troubleshooting) |
| .endΣ | 0..1 | instant | When to automatically delete the subscription |
| .reasonΣ | 1..1 | string | Description of why this subscription was created |
| .criteriaΣ | 1..1 | string | Rule for server push |
| .errorΣ | 0..1 | string | Latest error note |
| .channelΣ | 1..1 | BackboneElement | The channel on which to report matches to the criteria |
| .id | 0..1 | String | Unique id for inter-element referencing |
| .extension | 0..* | Extension | Additional content defined by implementations |
| .modifierExtension?!Σ | 0..* | Extension | Extensions that cannot be ignored even if unrecognized |
| .typeΣ | 1..1 | code | rest-hook | websocket | email | sms | message Bindingsubscription-channel-type(required) |
| .endpointΣ | 0..1 | url | Where the channel points to |
| .payloadΣ | 0..1 | code | MIME type to send, or omit for no payload Bindingmimetypes(required) |