One change in a context's change feed: a pointer to what changed, never the change itself.It names the kind of change, the thing it changed, who acted and when. It carries no title,
prose, meta value or key name: the new state is reached only by reading the subject through its
own door, under the reader's standing. A subject the reader can no longer read is still pointed
at, and its own read is what refuses it.
{
"act": "693918ad-8953-41e1-96e4-6badbeea0fc6",
"actor": "b4172a54-df0e-4918-8f0c-143e6e6d9830",
"block": "2521afcc-965b-4a33-b154-400abd5695f5",
"kind": "string",
"occurred_at": "2019-08-24T14:15:22.123Z",
"subject": {
"id": "497f6eca-6276-4993-bfeb-53cbbbba6f08",
"table": "string"
}
}