{"keys": [
  {
    "x5c": [ "__test_x5c_1__" ],
    "kid": "__test_kid_1__"
  },
  {
    "x5c": [ "__test_x5c_2__" ],
    "kid": "__test_kid_2__"
  },
  {
    "kid": "__no_x5c_test_kid_2__"
  }
] }