about.id for document with id1916Authorization: Bearer ********************{
"about": [
2,
4
]
}curl --location --request PUT '/api/boarding-application/607/document/1916' \
--header 'Authorization: Bearer <token>' \
--header 'Content-Type: application/json' \
--data-raw '{
"about": [
2,
4
]
}'{
"attachment": {
"id": 1916
},
"about": [
2,
4
],
"principal": {
"id": null
}
}