[
  {
    "description": "treehash per file",
    "signed_content": {
      "payload": "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",
      "signatures": [
        {
          "header": {
            "kid": "publisher"
          },
          "protected": "eyJhbGciOiJSUzI1NiJ9",
          "signature": "ES6lf5oFuv19ol-ec5auRyY61wsqlZYJpuO3E8guXl-lr1SMn4Ehb0RzMoQf9R1CJFoFIi0JoWZiOIY9BUy4bZ8F2Fpuk1QhRyrktBiZM3EsZCQBAYKw4Veg_kIG3Bl5u5CK4o4ei55LwTUiq2B5b4ME2mmee9iAMllwkrpZ3Eg8aw6bseMP-HjQRFglnCizlYbeUtD7oySgan2H2abyxgPntlCaNRfzpajTW9kte51G-lU6w-YXz4PKVXDMOg8C2O4GNkENCgOlmEUfNMV5zjvd5NLll6Sxy3qw8k7A05xg5bFENNXn4t69FVhTriXKJWZ3NdwXU6TJaj8vqzfedw"
        },
        {
          "header": {
            "kid": "webstore"
          },
          "protected": "eyJhbGciOiJSUzI1NiJ9",
          "signature": "UD7nz0KrPGWVCmaS36l9uzIkJGeZ5-rZtm1HnKnInI2r4ndAqE_nMAp4CGb66NOHRtYcDuQDIKfG53nR8hYcA09FXsmOXNFOlR5WboFF1xa7nNVCg0M-BkJ_3mnxwRP5O1Ci3EAmpRdx3e8TIqprTTAhb6TGfU-rpW_AQoePNlO6ct197ljyzQn-Cw2TG51MDv4B80HOVbQmUNXpX0bWOXHuqpbyV5ZWXPYQxyGPF8WSj_SmJcwuqnUU3bPbclZXhjcuU7HHRGQy3g2hdo7N7aVJlFkGmu1gjVdS7nHxsK4G5U-VjriX0Cd7jDzW03MIL2qMR8ZC7lrlK2pATCWNAg"
        }
      ]
    }
  }
]