{
  "manageEntity": {
    "action": "Update",
    "entityId": "1471306406",
    "entityType": "Track",
    "metadata": "{\"cid\":\"\",\"data\":{\"track_id\":1471306406,\"owner_id\":201451638,\"description\":\"\",\"field_visibility\":{\"mood\":true,\"tags\":true,\"genre\":true,\"share\":true,\"play_count\":true,\"remixes\":false},\"genre\":\"Soundtrack\",\"isrc\":\"\",\"is_unlisted\":false,\"iswc\":\"\",\"license\":null,\"mood\":\"Other\",\"is_stream_gated\":false,\"stream_conditions\":null,\"is_download_gated\":false,\"download_conditions\":null,\"tags\":\"\",\"title\":\"Don't give up\",\"duration\":12,\"audio_upload_id\":\"107939c16dc2ebb374110bb3d7d4d2a0\",\"track_cid\":\"baeaaaiqsebzjl4jneman22ywlmrxulqgd4qam6guzjimhlulvizl5uoflzgn6\",\"preview_cid\":\"\",\"orig_file_cid\":\"baeaaaiqseaacb56wgv32drv3si5uqfcsfcfm2e6ygqehb7zvck7hfphjrdmp2\",\"orig_filename\":\"mus_game_over.ogg\",\"is_downloadable\":false,\"is_original_available\":false,\"ddex_release_ids\":null,\"ddex_app\":\"\",\"parental_warning_type\":null,\"bpm\":130,\"is_custom_bpm\":false,\"musical_key\":\"C major\",\"is_custom_musical_key\":false,\"comments_disabled\":false,\"is_scheduled_release\":false}}",
    "nonce": "0xb77ca4c1ea28a74155afe6eb1cc4f6e3a619ce48b0c0ec594a2446921cbce61f",
    "signature": "0x4363e196dacde0ebcdfe8d9480a53975760b16074e9712e7d8a8aa43082341aa7b4630e59459c813b8ba640d52b940e76b1b8e80761190e52c3f8da046fa8adc1c",
    "signer": "0xE8F5265Fe3CDe52D4F0f15c3940B99F8e2d12cCe",
    "userId": "201451638"
  }
}