bitcoin core – How to import address with private key using importmulti

Problem. importmulti function has a lot of parameters and they are more difficult to understanding then the parameters of another Bitcoin RPC-API functions. Those who are not profi in modern cryptographic achievements have difficult with understanding how to use importmulti function.

Here is the task that demonstrates the problem.
There is 2 wallets with the Bitcoin Core v.0.19.1:
wallet1 – the wallet with private key for export.
wallet2 – empty wallet into which we need to import the PK+address from wallet1.

So in the wallet1 we have the bitcoin address created by getnewaddress.

[root@wallet1 ~]# bitcoin-cli getaddressinfo 3M5e4QMBUYtpEewwuuoWCArpiM2fT4KEDy
{
  "address": "3M5e4QMBUYtpEewwuuoWCArpiM2fT4KEDy",
  "scriptPubKey": "a914d4b1b498c8be8813273937b834be6d9d1f488b9087",
  "ismine": true,
  "solvable": true,
  "desc": "sh(wpkh([675dc179/0'/0'/0']02607cb6c05a575fd040498ec8c44eabfa2a4f0fc320aeacf494a77b3a408d84af))#r6dvu4wk",
  "iswatchonly": false,
  "isscript": true,
  "iswitness": false,
  "script": "witness_v0_keyhash",
  "hex": "00144c88353345f2e03abc8e96b818fd030c3c9f59ab",
  "pubkey": "02607cb6c05a575fd040498ec8c44eabfa2a4f0fc320aeacf494a77b3a408d84af",
  "embedded": {
    "isscript": false,
    "iswitness": true,
    "witness_version": 0,
    "witness_program": "4c88353345f2e03abc8e96b818fd030c3c9f59ab",
    "pubkey": "02607cb6c05a575fd040498ec8c44eabfa2a4f0fc320aeacf494a77b3a408d84af",
    "address": "bc1qfjyr2v697tsr40ywj6up3lgrps7f7kdtvw6mnu",
    "scriptPubKey": "00144c88353345f2e03abc8e96b818fd030c3c9f59ab"
  },
  "label": "",
  "ischange": false,
  "timestamp": 1589545405,
  "hdkeypath": "m/0'/0'/0'",
  "hdseedid": "7cf768d4050dc142a69a149666798cc434045c6c",
  "hdmasterfingerprint": "675dc179",
  "labels": [
    {
      "name": "",
      "purpose": "receive"
    }
  ]
}

[root@wallet1 ~]# bitcoin-cli dumpprivkey 3M5e4QMBUYtpEewwuuoWCArpiM2fT4KEDy
Kwngf5FSYmHM5oPHjSoKxtHWUxXiQ5YN5ZR6shmzkYpMMftBh92c

I’ve tried to import that address to wallet2 but have failed.

[root@wallet2 ~]# bitcoin-cli importmulti '[{ "scriptPubKey": { "address": "3M5e4QMBUYtpEewwuuoWCArpiM2fT4KEDy" }, "timestamp":"now", "keys": { "Kwngf5FSYmHM5oPHjSoKxtHWUxXiQ5YN5ZR6shmzkYpMMftBh92c":0 }  }]' '{"rescan": false}'

result
[
  {
    "success": false,
    "error": {
      "code": -1,
      "message": "Missing required fields"
    }
  }
]

What the correct way to import that address using importmulti? Show the example please.