Please help me!! How to set UV in the UV_St DSF file in Unity

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    "uv_set_library" : [

        {

            "id" : "Base Female",

            "name" : "Base Female",

            "label" : "Base Female",

            "vertex_count" : 21556,

            "uvs" : {

                "count" : 23223,

                "values" : [

                    [ 0.569236, 0.550367 ],

                    [ 0.567632, 0.552205 ],
....

            "polygon_vertex_indices" : [

                [ 454, 24, 21569 ],

                [ 18739, 24, 21569 ],

                [ 14679, 70, 22667 ],
....
How to use the data in "polygonurtex_indice", where the UV points on the edges are always misaligned