{
  "manageEntity": {
    "action": "Create",
    "entityId": "499460434",
    "entityType": "Track",
    "metadata": "{\"cid\":\"\",\"data\":{\"track_id\":499460434,\"description\":\"\",\"field_visibility\":{\"mood\":true,\"tags\":true,\"genre\":true,\"share\":true,\"play_count\":true,\"remixes\":true},\"genre\":\"Country\",\"isrc\":\"\",\"is_unlisted\":false,\"iswc\":\"\",\"license\":null,\"is_stream_gated\":false,\"stream_conditions\":null,\"is_download_gated\":false,\"download_conditions\":null,\"tags\":\"\",\"title\":\"The World Today\",\"duration\":152,\"audio_upload_id\":\"08592e578c90f9c5364a9c1621e242a4\",\"track_cid\":\"baeaaaiqsebuhsyz7czilg5v4mk3w7az6s3lwceg7gwo4ahwjuivbmyx7sn6iw\",\"preview_cid\":\"\",\"orig_file_cid\":\"baeaaaiqseb3mnfh6w4x3ah6zz3j4cjjjnv5ojippgnfv7dvc2dutl6p2cpdtu\",\"orig_filename\":\"The World Today.wav\",\"is_downloadable\":false,\"is_original_available\":false,\"is_playlist_upload\":false,\"ddex_release_ids\":null,\"ddex_app\":\"\",\"parental_warning_type\":null,\"bpm\":105,\"is_custom_bpm\":false,\"musical_key\":\"B flat major\",\"is_custom_musical_key\":false,\"comments_disabled\":false,\"is_scheduled_release\":false,\"owner_id\":846944872,\"audio_analysis_error_count\":0,\"cover_art_sizes\":\"baeaaaiqsecqln7oogy2eqvotvwakdajlukxdsmxcxolocf7iv3gs2qkfvqkls\"}}",
    "nonce": "0x38c59c5a58fd78f931b39e3aa3266be4b705aba6e5dcc1e739793cb2457a5650",
    "signature": "0x31ef49509faa3c90fe8db91831d66e168f4c437d78f69bfaa273b1839c2d650c59f528e8e37ca0e067c9df80a1f2d383657955697618d8aebe048f7248a67a141c",
    "signer": "0xFbC748a29E911C0456f1Db3dbAc2351E1f9B07D6",
    "userId": "846944872"
  }
}