Get list of SMS Campaigns

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                "_total_count": 10,
                "body": "This is my new campaign message.",
                "custom_string": null,
                "date_added": "1444962803",
                "from": "+61353787447",
                "ip_address": "192.168.10.1",
                "list_id": 428,
                "name": "This is my awesome campaign.",
                "schedule": "1444821615",
                "sms_campaign_id": 1,
                "source": null,
                "status": "Cancelled",
                "subaccount_id": 1,
                "user_id": 1
            },
            {
                "_total_count": 10,
                "body": "This is my new campaign message.",
                "custom_string": null,
                "date_added": "1444962630",
                "from": "+61353787448",
                "ip_address": "192.168.10.1",
                "list_id": 428,
                "name": "My Campaign 1",
                "schedule": "1444821615",
                "sms_campaign_id": 7,
                "source": null,
                "status": "Queued",
                "subaccount_id": 1,
                "user_id": 1
            },
            {
                "_total_count": 10,
                "body": "This is my new campaign message.",
                "custom_string": null,
                "date_added": "1444893067",
                "from": "+61353787448",
                "ip_address": "192.168.10.1",
                "list_id": 428,
                "name": "My Campaign 1",
                "schedule": "1444821615",
                "sms_campaign_id": 6,
                "source": null,
                "status": "Queued",
                "subaccount_id": 1,
                "user_id": 1
            },
            {
                "_total_count": 10,
                "body": "This is my new campaign message.",
                "custom_string": null,
                "date_added": "1444891837",
                "from": "+61353787448",
                "ip_address": "192.168.10.1",
                "list_id": 428,
                "name": "My Campaign 1",
                "schedule": "1444821615",
                "sms_campaign_id": 5,
                "source": null,
                "status": "Sent",
                "subaccount_id": 1,
                "user_id": 1
            },
            {
                "_total_count": 10,
                "body": "This is my new campaign message.",
                "custom_string": null,
                "date_added": "1444888498",
                "from": "+61353787448",
                "ip_address": "192.168.10.1",
                "list_id": 428,
                "name": "My Campaign 1",
                "schedule": "1444821615",
                "sms_campaign_id": 4,
                "source": null,
                "status": "Sent",
                "subaccount_id": 1,
                "user_id": 1
            },
            {
                "_total_count": 10,
                "body": "This is my new campaign message.",
                "custom_string": null,
                "date_added": "1444882130",
                "from": "+61353787448",
                "ip_address": "192.168.10.1",
                "list_id": 428,
                "name": "My Campaign 1",
                "schedule": "1444821615",
                "sms_campaign_id": 3,
                "source": null,
                "status": "Sent",
                "subaccount_id": 1,
                "user_id": 1
            },
            {
                "_total_count": 10,
                "body": "This is my new campaign message.",
                "custom_string": null,
                "date_added": "1444882068",
                "from": "+61353787448",
                "ip_address": "192.168.10.1",
                "list_id": 428,
                "name": "My Campaign 1",
                "schedule": "1444821615",
                "sms_campaign_id": 2,
                "source": null,
                "status": "Sent",
                "subaccount_id": 1,
                "user_id": 1
            }
        ],
        "from": 1,
        "last_page": 1,
        "next_page_url": null,
        "per_page": 20,
        "prev_page_url": null,
        "to": 7,
        "total": 7
    },
    "http_code": 200,
    "response_code": "SUCCESS",
    "response_msg": "Here are your SMS campaigns."
}