curl --request POST \
  --url https://api.piriod.com/ach_transfers/adjustments/ \
  --header 'Authorization: <api-key>' \
  --header 'Content-Type: application/json' \
  --header 'x-simple-workspace: <x-simple-workspace>' \
  --data '
{
  "transfer": 123,
  "amount": 123,
  "operation": "add",
  "currency": "<string>",
  "base_amount": 123,
  "base_currency": "<string>",
  "comment": "<string>"
}
'

{
  "transfer": 123,
  "amount": 123,
  "operation": "add",
  "id": 123,
  "currency": "<string>",
  "base_amount": 123,
  "base_currency": "<string>",
  "comment": "<string>",
  "created": "2023-11-07T05:31:56Z"
}