Openai moderation body 'input' is a required parameter

I have a request with a body that contains ‘input’ with the text I’m moderating to make sure it doesn’t violate terms, but I get an error that says:

{
  "error": {
    "code": null,
    "param": null,
    "message": "'input' is a required property",
    "type": "invalid_request_error"
  }
}

The input is there. Why am I seeing this issue?

I’m POSTing to https://api.openai.com/v1/moderations with this payload:

{
  "input": "I want to kill them.",
}

Content-Type: application/json
Authorization: Bearer [MY TOKEN]

It works locally, but not when I push it to a lambda. Any ideas?

Nothing? Is anybody else having this issue?