{
"requestId": "499a5a4a-7dda-4f20-9b67-e24589627061",
"timestamp": "2022-12-04T13:38:24.730Z",
"subscription": {
"purpose": {
"text": "string",
"code": "string",
"refUri": "string"
},
"patient": {
"id": "hinapatel@ndhm"
},
"hiu": {
"id": "string"
},
"hips": [
{
"id": "string"
}
],
"categories": [
"LINK"
],
"period": {
"from": "2022-12-04T13:38:24.730Z",
"to": "2022-12-04T13:38:24.730Z"
}
from JSON what is value of refURI of purpose