[
  {
    "description": "treehash per file",
    "signed_content": {
      "payload": "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",
      "signatures": [
        {
          "header": {
            "kid": "publisher"
          },
          "protected": "eyJhbGciOiJSUzI1NiJ9",
          "signature": "OQpwsg7el59BiJ3pZ-Ja4w2Tws53stCNtX_SzFohAEmvzBCFXusSVhqpfEoIUpe_C4Q_SJTsNeIs0yWMYXEXbUl6MucGE0VUcTypmTQ7sZgzjXa71W_XXDqSqAL2PjyZnnvHu4534452B8xzRglEzzEtyezCQOEdkDrecx03eYuTOGBNW3RosO11450ueNg8CQ9nJy_3MTZZX-7nLbKB6kq7piqqcNIykuJtG-xo0oujIZ4hdOGUfW7r9yOsFwQep-_7oBD33z8rprfp8VTATNcOngDSACh0OcBLZYiaowfudxE08qCYu49x-twUrqZnQH5t8zMoU6osA4Wd0ww1zQ"
        },
        {
          "header": {
            "kid": "webstore"
          },
          "protected": "eyJhbGciOiJSUzI1NiJ9",
          "signature": "IKW2lgWyxCDqkXtzAShxiyHVvOEFxa_tYNri4THvn2bmDko6tDn3rtPhTZGmQGIl76tr-6sCAh2MW5DaQ3-1j1teOkL1LpoRPSIIG91nRrfnLPiSvGBFpakqMCGth8QtEsmQf_LQ_N4OeRFNrKWuCbEp1kdktUKSrKUzUHEoWw74M_F2QZOSCLv7ckrGJWNI2BDRovry-FLX-QEcMlYIMzyzAJ9ldetXMh5povfhT9ftyTrMcmS1BF7mJaiCqwUOuvO_6TsEHZYiYkcJfhukla2v5IOAIi-ClE5fQqP-a95hGey94OsSHAScRjE0yAIr0ucKYBLNa5U80NHwoPij8Q"
        }
      ]
    }
  }
]