is configured to use an external signer such as a hardware wallet
  "blank" : true|false,                   (boolean) Whether this wallet intentionally does not contain any keys, scripts, or descriptors
  "birthtime" : xxx,                      (numeric, optional) The start time for blocks scanning. It could be modified by (re)importing any descriptor with an earlier timestamp.
  "lastprocessedblock" : {                (json object) hash and height of the block this information was generated on
    "hash" :