Signet payments in sandbox

Signet payments in the sandbox behave very similarly to live Signet payments, with some notable differences.

1. Signet payments in the sandbox will settle (i.e. reach a terminal state of completedor failed) approximately 3 minutes after creation. Live Signet payments settle in real-time, typically within minutes.
2. Signet payments in the sandbox may use any other internal_account as the receiving account DDA when initiating a deposit or redeem. Live Signet payments must use the internal_account corresponding to the real DDA at Signature Bank NY.
3. For deposit and redeem payments, any receiving account number beginning with 11111111 will automatically fail. For transfer payments, any receiving account number (i.e. wallet address) beginning with 0x11111111 will automatically fail.

Organizations are seeded with the following Internal and External accounts for testing, each representing a Signet wallet.

1. GWB Signet Wallet (internal_account)
2. IBB Signet Wallet (internal_account)
3. Harry Potter Signet Wallet (external_account)
4. Lucius Signet Wallet (external_account)