Escaped json data in restful view

I'm using json_field to store some json data for each content type which we then output as a json view. However when I output the view the data in the json field is escaped and works like a string instead of a subset of the json data.

eg
[
{
"nid": "175",
"title": "Joint Building house S & J K*****n",
"loan_package_file": "/drupal8/system/files/840/1491787660_840_docs.zip",
"loan_status": "serviced",
"created": "2017-04-10T12:34:24+1000",
"field_json_data": "{\"live_in_same_address\":true,\"same_assets\":\"\",\"same_liabilities\":\"\",\"property_address_same_home\":true,\"applicant_2_property_address_same_home\":\"\",\"is_joint_application\":\"Yes\",\"middle_name\":\"Alice\",\"last_name\":\"Kargaran\",\"title\":\"Mr\",\"gender\":\"Male\",\"first_name\":\"Samantha\",\"home_phone\":\"\",\"mobile_phone\":\"0412345678\",\"email\":\"test@gmail.com\",\"joint_app\":\"\",\"dependant\":\"2\",\"dependantssame\":\"\",\"marital_status\":\"Married\",\"date_of_birth\":\"10/10/1980\",\"dl_number\":\"\",\"dl_expiry_date\":\"\",\"dl_state\":\"\",\"building_a_new_home\":\"false\",\"purchasing_a_new_home\":\"false\",\"fhg\":\"false\",\"invest_home\":\"true\",\"refinance\":\"false\",\"refinance_and_payout_other_debts\":\"false\",\"loan_product_amount\":\"200000.00\",\"loan_length\":\"30\",\"defaults\":\"\",\"property_asset_unit_no\":\"\",\"property_asset_street_no\":\"100\",\"property_asset_street_name\":\"Ardvark St\",\"property_asset_street_type\":\"St\"}]}"
}]