JSON output as string

I’m trying to configure HTTP input plugin in telegraf using JSON, a string is obtained at the end and telegraf returns the error:

Query path must lead to a JSON object, array of objects or null, but lead to: String

My configuration:

[[inputs.http]]
    urls = [
        "https://localhost:8080"
  ]
    method = "POST"
    headers = {"content-type" = "application/json"}
    insecure_skip_verify = true
    password = 'telegraf'
    username = 'verysecpass'
    body = '{"count":200,"encoding":"auto"}'
    data_format = "json"
    json_query = '#(properties.headers.database=="stats").payload'

[[outputs.influxdb]]
    content_encoding = 'identity'
    database = 'stats'
    urls = ['http://localhost:8086']

Input:

[
      {
        "properties": {
          "headers": {
            "database": "telegraf"
          },
          "content_type": "text/plain"
        },
        "payload": "net,cluster_id=cluster01,dc=dc02,host=specific_host01,instance=instance-00107205 network_write_packets=15100740,network_write_drops=0 1628285530000000000\n",
        "payload_encoding": "string"
      },
      {
        "properties": {
          "headers": {
            "database": "stats"
          },
          "content_type": "text/plain"
        },
        "payload": "dsk_stats,Region=Q3,host=specific_host01 disk_usage=8.344534641 1628285530000000000\n",
        "payload_encoding": "string"
      }
  ]

After json_jquery is executed, the output will be:

dsk_stats,Region=Q3,host=specific_host01 disk_usage=8.344534641 1628285530000000000

This is really what I want to forward to InfluxDB. How can I avoid the telegraf error by using json, while getting a string?