Attempt to send funds from band-cosmoshub(gaia) to band-consumer on a new account.

payload.json

{
   "tx":{
      "msg":[
         {
            "type":"ibc/transfer/MsgTransfer",
            "value":{
               "source_port":"transfer",
               "source_channel":"ybkzdbrgsp",
               "dest_height":"0",
               "amount":[
                  {
                     "denom":"transfer/qtwfqolgoh/uatom",
                     "amount":"1000000"
                  }
               ],
               "sender":"cosmos1d9l4wyzt472xlzlrw4e3nt9jklvznus3yvdgxy",
               "receiver":"cosmos1d9l4wyzt472xlzlrw4e3nt9jklvznus3yvdgxy"
            }
         }
      ],
      "fee":{
         "gas":"200000",
         "amount":[
            {
               "denom":"uatom",
               "amount":"1000000"
            }
         ]
      },
      "signatures":[
         {
            "pub_key":{
               "type":"tendermint/PubKeySecp256k1",
               "value":"A9IpwOjMMchLIOf/fgq03uRpAjfDpG31VkW5LgkelEDG"
            },
            "signature":"AtT7oMxK1i5ot209+K1UzKmpeTVPoqj0ue3XQMJCVdgrtmPH1R+lZw6qiiNSbgbZs1UXm5Ba0+eCe/4fFl6pnQ==",
            "account_number":"139",
            "sequence":"0"
         }
      ],
      "memo":"Stsh0HsGCCiO9jMhPoKgQ1wPfh8uv0Zl"
   },
   "mode":"block"
}

The error: unrecognized public key type: \u003cnil\u003e: invalid pubkey