regex101: PCRE (Legacy) Match Workspace

Regular Expression

"logUser"\s*\:([^\,]+),

{
    "id": 1,
    "numeracao": "001",
    "logUser": 100,
    "permissionario": {
        "id": 3113715,
        "nome": "ARTHUR MATHEUS SÉRGIO DA SILVA",
        "dataDeNascimento": "2000-12-10",
        "endLogradouro": "RUA TERESINA",
        "endNumero": "89465468",
        "endBairro": "ROSA DOS VENTOS",
        "endCidade": "PARNAMIRIM",
        "endUf": "RN",
        "endCep": "59142125",
        "endComplemento": null,
        "telefoneFixo": null,
        "telefoneMovel": "(94) 949849849",
        "email": null,
        "logDate": "2019-01-16",
        "logUser": null,
        "sexo": "MASCULINO",
        "foto": null,
        "cpf": "10322314593",
        "estadoCivil": "CASADO",
        "cnhNumero": null,
        "cnhCategoria": null,
        "cnhValidade": null,
        "rgNumero": "64684654",
        "rgOrgaoExpeditor": "SSP",
        "rgDataEmissao": null,
        "rgUF": "RN",
        "status": true
    },
    "veiculo": {    
        "id": 3,
        "placa": "JUQ9196"