curl --request POST \
  --url https://api.eqho.ai/v1/leads \
  --header 'Content-Type: application/json' \
  --header 'X-API-KEY: <api-key>' \
  --data '{
  "list_ids": [
    "<string>"
  ],
  "lead": {
    "created_at": "2021-08-25T00:00:00+00:00",
    "email": "[email protected]",
    "first_name": "Jane",
    "last_name": "Smith",
    "phone": "+18015551831",
    "phone_extension": "123"
  }
}'

{
  "created_at": "2021-08-25T00:00:00+00:00",
  "email": "[email protected]",
  "first_name": "Jane",
  "last_name": "Smith",
  "phone": "+18015551831",
  "phone_extension": "123"
}