{
  "items": [
    {
      "table_name": "track",
      "field_name": "track_artist",
      "key_id": 1,
      "key_value": [
        {
          "type": "performer",
          "name": "some artist"
        }
      ]
    },
    {
      "table_name": "track",
      "field_name": "track_writer",
      "key_id": 1,
      "key_value": ["some writer"]
    },
    {
      "table_name": "track",
      "field_name": "producer",
      "key_id": 1,
      "key_value": []
    },
    {
      "table_name": "track",
      "field_name": "track_name",
      "key_id": 1,
      "key_value": "abc ballad"
    },
    {
      "table_name": "track",
      "field_name": "p_line",
      "key_id": 1,
      "key_value": "abc"
    },
    {
      "table_name": "track",
      "field_name": "previewstarttime",
      "key_id": 1,
      "key_value": "00:00:00"
    },
    {
      "table_name": "track",
      "field_name": "lyrics",
      "key_id": 1,
      "key_value": "abc"
    },
    {
      "table_name": "track",
      "field_name": "length_seconds",
      "key_id": 2,
      "key_value": "10"
    },
    {
      "table_name": "track",
      "field_name": "length_minute",
      "key_id": 2,
      "key_value": "1"
    },
    {
      "table_name": "track",
      "field_name": "featureToPrimary",
      "key_id": 2,
      "key_value": [
        {
          "type": "feature_to_primary",
          "name": "some ftp"
        }
      ]
    },
    {
      "table_name": "track",
      "field_name": "track_writer",
      "key_id": 2,
      "key_value": []
    },
    {
      "table_name": "release",
      "field_name": "genre_id",
      "key_id": 5,
      "key_value": "5"
    }
  ]
}