Rest API does not add a subscriber to a list

[astronati]

Hello,

I’m using The Newsletter Plugin with Newsletter API Extension, but I’m unable to perform some calls.

curl -X POST \
  https://...../wp-json/newsletter/v1/subscribe \
  -H 'cache-control: no-cache' \
  -H 'content-type: application/json' \
  -d '{
    "email": "test@email.it",
    "api_key": "(my_api_key)",
    "lists": [2]
}'

Performing a call like this, the subscriber is created but not added to the list #2.
The API Key is correctly added in the admin section, I double checked.

Am I doing something wrong? Any suggestion?

Thanks for your support.

[Author]

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