[
  {
    "description": "treehash per file",
    "signed_content": {
      "payload": "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",
      "signatures": [
        {
          "header": {
            "kid": "publisher"
          },
          "protected": "eyJhbGciOiJSUzI1NiJ9",
          "signature": "J0v-K63Nvxpqscyw6S05nTlC9-S8olXeFQSywYVhe24h6rrl9DHEccFkpNhIxpN4X1VrWtBqxbtMFlH7KbNaRhg2uPqij78u_BhJZ3fkSMV5sSSaFZAOvpBGyt0FaqO9geyzTXKAI9PqSFY9wTp16u1GREq_h9fKYneNbD4SKLupEFPM4zRVaMCQ2n4oQNsjJSuCZRFY5yiQNXVabVX9Svv5D3K6XqeMWgg085k6onfNND-bzDPIYOF7C4JeUKSVWz1hd3JA9jKmt69vehmQQHsTaEAG5yDPUTU8IHidSphOgqHC_jJ2WCGK8HlAb6oM4bMVFRJ69F93PUqNBFc6Zw"
        },
        {
          "header": {
            "kid": "webstore"
          },
          "protected": "eyJhbGciOiJSUzI1NiJ9",
          "signature": "N1AH9M058XM19NvWu4MK40ARKKc2Sh4uUCXMvuq-e6om9Zh_EtANL1YQyBMMPJpw2wD8-o7j3r8CEYHPzM5E9t9usQclQa-F04MAaZqGH5kH-VEV4qrqnvolyh1pSezT9EQJqEa4g8TKy3qYG19fs-oEPdozLvWeQ34jtAY6FTaiWhkNCOugVLTWVWV1kV3sDPHhwCX1D63R4rRF6RLnN07cu2sr9E6Vi9id3c35OwH8bUT42HK-WEOouaFfCqTg5-GKHSCS2DO0s4spJfNkWVGz5gLldfjpG-JYncHV8X-4JDT-cPYnT_BcHWtfp08QHusPuX8qX_iJ2BEhCCePtw"
        }
      ]
    }
  }
]