Filebeat unicode json parse error

Elastic Stack Beats
1

I have worked worked with json earlier, but this json output is unique, and filebeat throws error as

Error decoding JSON: invalid character 'u'

elk_filebeat     | 2021-08-01T23:33:35.056Z     ERROR   json/json.go:51 Error decoding JSON: invalid character 'u' looking for beginning of object key string

The json file is

{u'service': [{u'status': {u'started': u'2021-07-04T09:28:31.000Z', u'ldapConnectionState': u'connected', u'connectionCount': 104, u'InitiatorState': u'running', u'State': u'running'}, u'name': u'APPServ'}]}

Tried to add the encoding to see if it changes.
Filebeat config is pretty straight forward

- type: log
  enabled: true
  paths:
    - /var/log/*.log
  json.keys_under_root: true
  json.add_error_key: true
  encoding: "utf-8"

How would i go about this?

2

It's complaining about the u preceding the text. It's not valid json.

3

is there a way for filebeat to discard the 'u

4

Maybe try to script it using the script processor but besides that, not that I'm tracking.