Mapping Object Fields and Child Object Fields

Hello all,

I'm trying to map fields form a json object that is returned in the following way:

[
{
"Field 1":"ABC",
"Field 2":"ABC",
"Field 3":"ABC",
"Field ":[
{
"SubField 1":"ABC",
"SubField 2":"ABC",
"SubField 3":"ABC"
}
]
},

What i want to do is to create a node wich has Field 1, Field 2 and Field 3, and also SubField 1, SubField 2, and SubField 3.

I know how to map the primary fields, but i am unsure of what should be the way to map the SubFields.

Can anyone point me in the right direction regarding this?

Best Regards,

Bruno