Paga sends this to your server. You don’t call it; build an endpoint at your callback URL that accepts it.

Sent when someone pays into a subsidiary account. The hash is in the x-paga-hash-v3 header, not the body. Respond with {"status": "SUCCESS"}.

Hash: the fields named in x-paga-hash-v3-parameters, in order: transactionReference + transactionDate + amount + accountNumber + timestamp + hashKey.