Request parameters for a backchannel (CIBA) authorization call.
The access type for the token (online or offline).
online
offline
The account identifier hint in the format ID:{msisdn}/MSISDN (e.g. ID:563667/MSISDN).
ID:{msisdn}/MSISDN
ID:563667/MSISDN
The OAuth2 scope being requested (e.g., profile openid).
profile openid