Apache Nifi add json array name

Hello everyone,

i need your help. I am relatively new to nifi and need your help. I am using the processor ConsumeKafkaRecord_2_6 1.15.3 with the record writer json set record writer. The output is then an array without object name. Which processor or setup can I use to add an array name to the json output? I get this Output 

[ {
  "moving_id" : 17078440,
  "store_id" : 9,
  "gtin" : 4064813288877,
  "qty" : -1.0,
  "condition_indicator" : 40,
  "issue_date" : 1656585240000,
  "received_date" : 1656547200000,
  "update_date" : 1656578057133
}, {
  "moving_id" : 17078441,
  "store_id" : 9,
  "gtin" : 4064813288907,
  "qty" : -1.0,
  "condition_indicator" : 40,
  "issue_date" : 1656585240000,
  "received_date" : 1656547200000,
  "update_date" : 1656578057133
} ]

and i need json file in this structur

{"stocks":
[ {
  "moving_id" : 17078440,
  "store_id" : 9,
  "gtin" : 4064813288877,
  "qty" : -1.0,
  "condition_indicator" : 40,
  "issue_date" : 1656585240000,
  "received_date" : 1656547200000,
  "update_date" : 1656578057133
}, {
  "moving_id" : 17078441,
  "store_id" : 9,
  "gtin" : 4064813288907,
  "qty" : -1.0,
  "condition_indicator" : 40,
  "issue_date" : 1656585240000,
  "received_date" : 1656547200000,
  "update_date" : 1656578057133
} ]}