POS_PAYMENT_STATUS.
V2 Webhook Signing: If you have enabled V2 webhook signing, the
signatureHash field is removed from the payload and an eventType field is added. The webhook signature is delivered in the X-Atoa-Signature HTTP header instead.For V1 signing,
signatureHash is computed from orderId and refundId — see the V1 Signing guide. With V2 signing enabled, signatureHash is removed and replaced by the X-Atoa-Signature header.Only present when metadata was supplied on the refund. See Initiate Refund for the field limits.