[
  {
    "description": "treehash per file",
    "signed_content": {
      "payload": "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",
      "signatures": [
        {
          "header": {
            "kid": "publisher"
          },
          "protected": "eyJhbGciOiJSUzI1NiJ9",
          "signature": "0OQMzZqLKiEi-2LGCss7iY2OGCpPuIYUtJrvFsuA6dNGOmjd85vQ-7EnL9jOJJneNs-4Xe_xzv3Xsu9L4ahoHoP5R2gp_Kp2YmCyDhut6plVjsrZhhuMllV4vUMndcC_3XPC06KHNqchMWvgeOT_MavTohbpPbq1toaE9aJvlUQ52j_6NKJAF7irUy8b2MdCccjss0M6V53rLpL8R3RelTx5BQrrxzOSZ0FmlXIKEWWzNs7iplS2GFJhGtjngvAOHsjb9qRP_TnZ6rJmdMKFnAEwoKFeLJm6W8L1D3HGjd1zlW1J6vZfeDXgsNHKwEJqlNuJ99K9IuX3jvE-wPhNYw"
        },
        {
          "header": {
            "kid": "webstore"
          },
          "protected": "eyJhbGciOiJSUzI1NiJ9",
          "signature": "YxbimV2xdGGamL9-i1Fsr2aaBiZbRemMGQHVt7F0lBVSx8Kvl7SqGSzHtPksNifUdV0mYqiJGovHmAAi2VSxj2f6OTSAvoyLURVkuS6sc-y5Bn0MIWpt8v6tNRgoZOiTgPnN44z14wh_jOzhwOqhurmpIcrYSRrXliAQLb7y3tYsiUtUnUyYstpjCHuBXy1UyRm2G7lBRdW4xs-8Siik_LdQfemnrvUmfIcV9nyjSpHIXnAUrL-QEfryUtWovHvRqNJBmPU1u_m5ZQMBJSOY4OYY-_LPYEBoTA5q4zpIdkJaaGnITBggPvvYvV8yMDIA6NgoAdc4Kq2EQMA7O4AA9g"
        }
      ]
    }
  }
]