Number of signatures required to spend multisig output (only if "script" is "multisig")
  "pubkey" : "publickeyhex",    (string, optional) The hex value of the raw public key, for single-key addresses (possibly embedded in P2SH or P2WSH)
  "embedded" : {...},           (object, optional) information about the address embedded in P2SH or P2WSH, if relevant and known. It includes all validateaddress output fields for the embedded address, excluding "isvalid", metadata ("timestamp", "hdkeypath", "hdmasterkeyid