{
  "manageEntity": {
    "action": "Create",
    "entityId": "314219485",
    "entityType": "Track",
    "metadata": "{\"cid\":\"\",\"data\":{\"track_id\":314219485,\"description\":\"\",\"field_visibility\":{\"mood\":true,\"tags\":true,\"genre\":true,\"share\":true,\"play_count\":true,\"remixes\":true},\"genre\":\"Pop\",\"isrc\":\"\",\"is_unlisted\":false,\"iswc\":\"\",\"license\":null,\"is_stream_gated\":false,\"stream_conditions\":null,\"allowed_api_keys\":null,\"is_download_gated\":false,\"download_conditions\":null,\"tags\":\"\",\"title\":\"Where the Heart Goes First\",\"duration\":250,\"audio_upload_id\":\"711aee7e0b98a94082118a380c94362d\",\"track_cid\":\"baeaaaiqsebhyzb3yki45d5azbl3kw4l3xyzf2l6c2ugg52pyouidk2fobq76s\",\"preview_cid\":\"\",\"orig_file_cid\":\"baeaaaiqseatappf7hsyzhajjwe6lnhyoknpm7t6ueayotj3es2gl6tl6wyjz4\",\"orig_filename\":\"037220a3-d6c9-404b-b96b-44ef352f12a7.mp3\",\"is_downloadable\":false,\"is_original_available\":false,\"is_playlist_upload\":false,\"ddex_release_ids\":null,\"ddex_app\":\"\",\"parental_warning_type\":null,\"bpm\":149,\"is_custom_bpm\":false,\"musical_key\":\"B flat major\",\"is_custom_musical_key\":false,\"comments_disabled\":false,\"is_scheduled_release\":false,\"owner_id\":245818167,\"audio_analysis_error_count\":0,\"cover_art_sizes\":\"baeaaaiqsecyppybyvaj6iwrsoyzfcdkijjo7bo76xqwo43qjnx6ai4mu3bsxg\"}}",
    "nonce": "0x062f40f22f3286ee1625e687ad4f374fc63f66646bf952b9b3f6eeeb7b3e2f8a",
    "signature": "0xd0e5e88a1cca284eb7d0543c83aee447f9dc0c95fa3d513740abf3bcd33c642639b3cb264200fcf5c5d3e35e4c59f85620de769431fee1d92d7618f9caed31401c",
    "signer": "0x67a8F4F9768D7f5ef2B6E0b6EdFbf69DCB0Ec4ad",
    "userId": "245818167"
  }
}