Get a signer with signer handle.

{
  "signer_id": "0195b009-a139-7ff2-adac-15e3c3ecfc88",
  "id": "0195b009-a139-7ff2-adac-15e3c3ecfc88",
  "handle": "wYe6h63CNqoLxJet5jP1WWLhGi8D11ZGij",
  "keeper": [
    {
      "public": "7ef44ee7ff1f4527ef44ee7ff1f4527ef44ee7ff1f4527ef44ee7ff1f4527ef4",
      "scheme": "ecdsa-ed25519",
      "secret": "046d541aec939b4748943e49cc1117a70966a6fc87345e6052a54f1e69ea48d5"
    }
  ],
  "labels": {
    "type": "PERSON",
    "status": "INACTIVE",
    "created": "2025-03-19T15:12:55.993-05:00",
    "updated": "2025-03-20T15:12:55.993-05:00",
    "createdBy": "mSJkneiASd",
    "aliasType": "ALPHANUM",
    "aliasValue": "@jorge",
    "proprietary": "CC",
    "identification": "1010101010",
    "firstName": "Jorge",
    "lastName": "Diaz",
    "bankId": "900123456",
    "bankAccountType": "SVGS",
    "bankAccountNumber": "4123456789",
    "routerReference": "$bancorojo",
    "targetSpbviCode": "TFY",
    "consented": "2025-03-13T20:38:07-05:00",
    "received": "2025-03-13T20:38:07.123-05:00",
    "dispatched": "2025-03-13T20:38:10.123-05:00"
  },
  "error": {
    "code": 0,
    "message": "Success"
  }
}