Accessing sub keys/values in a map[string]interface{} variable – Getting Assist

the json to go is reporting error. lacking, “}”, getting this from a second json parser website additionally. but when I have a look at the json I can’t discover the err:

{
    entities: [
        {
            tenantId: "tenant10",
            entityType: "merchant",
            entityId: "merchant1",
            overallScore: {
                aggregationModel: "aggModel",
                overallScore: 0.2
            },
            models: [
                {
                    modelId: "model1",
                    score: 0.5,
                    confidence: 0.2,
                    tags: [
                        {
                            tag: "codes",
                            values: [
                                "highValueTrans",
                                "fraud"
                            ]
                        }
                    ]
                },
                {
                    modelId: "model2",
                    rating: 0.1,
                    confidence: 0.9,
                    tags: [],
                    modelData: { 
                        a: "b"
                    }
                },
                {
                    modelId: "aggModel",
                    rating: 0.2,
                    confidence: 0.9,
                    tags: [],
                    modelData: { 
                        a: "d"
                    }
                }
            ],
            failedModels: [
                "fm1",
                "fm2"
            ],
            outputTags: [
                {
                     tag: "codes",
                     values: [
                        "highValueTransaction",
                        "fraud"
                    ]
                },
                {
                    tag: "otherTag",
                    values: [
                        "t1",
                        "t2"
                    ]
                }
            ],
            riskStatus: "evaluation",
            configGroups: [
                {
                    type: "global",
                    triggeredRules: [
                        "rule1",
                        "rule2"
                    ],
                    aggregators: [
                        {
                            aggregatorId: "agg1",
                            scores: {
                                models: [
                                    {
                                        modelId: "model1",
                                        score: 0.51
                                    },
                                    {
                                        modelId: "model2",
                                        score: 0.42
                                    },
                                    {
                                        modelId: "aggModel",
                                        score: 0.2
                                    }
                                ],
                                tags: [
                                    {
                                        ns: "codes",
                                        tag: "dodgy"
                                    }
                                ],
                                guidelines: [
                                    { 
                                        ruleId: "rule1", 
                                        score: 0.2
                                    },
                                    { 
                                        ruleId: "rule2", 
                                        score: 0.4
                                    }
                                ]
                            },
                            aggregateScore: 0.2,
                            matchedBound: 0.1,
                            outputTags: [
                                {
                                    tag: "codes",
                                    values: [
                                        "LowValueTrans"
                                    ]
                                }
                            ],
                            suppressedTags: [
                                {
                                    tag: "otherTag",
                                    values: [
                                        "t3",
                                        "t4"
                                    ]
                                }
                            ],
                            alert: true,
                            suppressAlert: false
                        },
                        {
                            aggregatorId: "agg2"
                        }
                    ]
                },
                {
                    kind: "analytical",
                    id: "acg1",
                    triggeredRules: [
                        "rule1",
                        "rule3"
                    ],
                    aggregators: [
                        "a",
                        "d"
                    ]
                },
                {
                    kind: "analytical",
                    id: "acg2",
                    triggeredRules: [
                        "rule1",
                        "rule3"
                    ],
                    aggregators: [
                        "a",
                        "r"
                    ]
                },
                {
                    kind: "tenant",
                    id: "tenant10",
                    triggeredRules: [],
                    aggregators: [
                        "e",
                        "y"
                    ]
                }
            ]
        },
        {
            entityType: "client",
            entityId: "consumer1"
        }
    ],
    jsonVersion: 4,
    originatingEvent: { 
            a: "e"
    },
    outputTime: "2015-02-10T13:45:22Z",
    processorId: "proc",
    variations: {
        modelGraph: 4,
        configGroups: [
            { 
                type: "global", 
                version: "1"
            },
            { 
                type: "analytical", 
                id: "acg1", 
                version: "3"
            },
            { 
                type: "analytical", 
                id: "acg2", 
                version: "2"
            },
            { 
                type: "tenant", 
                id: "tenant10", 
                version: "0"
            }
        ]
    }
}