curl --request POST \
  --url https://sandbox.tight.com/v6/bookkeepers \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "data": [
    {
      "id": "bkpr_28868401",
      "userId": "usr_28868401",
      "email": "accountant@example.com",
      "firstName": "Jane",
      "lastName": "Smith",
      "role": "ACCOUNTANT",
      "status": "ACTIVE"
    }
  ]
}
'

{
  "data": [
    {
      "data": {
        "id": "bkpr_28868401",
        "userId": "usr_28868401",
        "email": "accountant@example.com",
        "firstName": "Jane",
        "lastName": "Smith",
        "role": "ACCOUNTANT",
        "status": "ACTIVE"
      },
      "error": [
        {
          "message": "<string>",
          "param": "<string>"
        }
      ]
    }
  ],
  "error": [
    {
      "message": "<string>",
      "param": "<string>"
    }
  ]
}