{
  "ok": true,
  "result": {
    "@type": "blocks.blockSignatures",
    "id": {
      "@type": "ton.blockIdExt",
      "workchain": 123,
      "shard": "<string>",
      "seqno": 123,
      "root_hash": "<string>",
      "file_hash": "<string>"
    },
    "signatures": [
      {
        "@type": "blocks.signature",
        "node_id_short": "<string>",
        "signature": "<string>"
      }
    ]
  }
}