Generate deposit transaction data (including signature) for one or more validators corresponding to the amount(s) specified in the request body.

Note that this will not replace nor invalidate the deposit data that is already stored on existing validator records

This endpoint will return an error in the following situations:

• an invalid amount is specified (<= 0 or > 32000000000, up to 2048000000000 for Pectra)
• one or more of the specified validators is not in a WAITING_DEPOSIT state
• one or more validators is not associated your account
• the list of specified validators contains duplicate pubkeys