Buscar preços de uma unidade

{
    "data": {
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        "oldPrice": 0,
        "pix": {
            "paymentMethodId": 20,
            "paymentMethod": "pix",
            "value": 38.7,
            "paymentRule": {
                "id": 2,
                "applicationType": "desconto",
                "calculationType": "porcentagem",
                "value": 10
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        },
        "creditCard": {
            "paymentMethodId": 7,
            "paymentMethod": "braspag",
            "value": 47.3,
            "paymentRule": null,
            "installments": [
                {
                    "quantity": 1,
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                    "total": 47.3,
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                    "discount": null,
                    "increase": 10
                },
                {
                    "quantity": 2,
                    "installmentValue": 23.65,
                    "total": 47.3,
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                    "increase": 10
                },
                {
                    "quantity": 3,
                    "installmentValue": 15.77,
                    "total": 47.3,
                    "creditCardRuleId": 1,
                    "discount": null,
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                },
                {
                    "quantity": 4,
                    "installmentValue": 11.83,
                    "total": 47.3,
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                    "increase": 10
                },
                {
                    "quantity": 5,
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                    "creditCardRuleId": 1,
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                },
                {
                    "quantity": 6,
                    "installmentValue": 7.88,
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                    "creditCardRuleId": 1,
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                    "increase": 10
                },
                {
                    "quantity": 7,
                    "installmentValue": 6.14,
                    "total": 43,
                    "creditCardRuleId": null,
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                    "increase": null
                },
                {
                    "quantity": 8,
                    "installmentValue": 5.38,
                    "total": 43,
                    "creditCardRuleId": null,
                    "discount": null,
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                },
                {
                    "quantity": 9,
                    "installmentValue": 4.78,
                    "total": 43,
                    "creditCardRuleId": null,
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                },
                {
                    "quantity": 10,
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                    "total": 43,
                    "creditCardRuleId": null,
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                },
                {
                    "quantity": 11,
                    "installmentValue": 3.91,
                    "total": 43,
                    "creditCardRuleId": null,
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                    "increase": null
                },
                {
                    "quantity": 12,
                    "installmentValue": 3.58,
                    "total": 43,
                    "creditCardRuleId": null,
                    "discount": null,
                    "increase": null
                }
            ]
        }
    }
}