{
  "manageEntity": {
    "action": "Create",
    "entityId": "1394918619",
    "entityType": "Track",
    "metadata": "{\"cid\":\"\",\"data\":{\"track_id\":1394918619,\"field_visibility\":{\"mood\":true,\"tags\":true,\"genre\":true,\"share\":false,\"play_count\":false,\"remixes\":true},\"genre\":\"Folk\",\"isrc\":null,\"is_unlisted\":true,\"iswc\":null,\"license\":null,\"is_stream_gated\":false,\"stream_conditions\":null,\"is_download_gated\":false,\"download_conditions\":null,\"title\":\"solarflex-background-music-515493\",\"duration\":70,\"audio_upload_id\":\"c90298e71e90d9d7bcfa50de3dfb6138\",\"track_cid\":\"baeaaaiqsedzq36yv4fcir4l4k5v5kxefblt7nlf5zz6z6bjp3fm2du56mgg7k\",\"preview_cid\":\"\",\"orig_file_cid\":\"baeaaaiqseapfj5gj274bknusjy3lbrzsteoavgbrymbjiwzljxborsek6gw2u\",\"orig_filename\":\"solarflex-background-music-515493.mp3\",\"is_downloadable\":false,\"is_original_available\":false,\"is_playlist_upload\":false,\"ddex_release_ids\":null,\"ddex_app\":\"\",\"parental_warning_type\":null,\"bpm\":81,\"is_custom_bpm\":false,\"musical_key\":\"F minor\",\"is_custom_musical_key\":false,\"comments_disabled\":false,\"is_scheduled_release\":false,\"owner_id\":841622517,\"audio_analysis_error_count\":0,\"cover_art_sizes\":\"baeaaaiqsedtegqxaibydne4kgrlsiitl2k5gibtanwaspzpj2fp7ylyo5e7ts\"}}",
    "nonce": "0xdfcb207e824704ef8372678af71063e4408bbe03344ad26655967a176515d673",
    "signature": "0x5708d675e3b4e2a7ce273504a33d0fc30aad012fcd314b4fedb3ac943f89f138601789de17b72d61c3f36a1315bd080ed0db4fd417dc9eb5b220f771f0dd7b3c1b",
    "signer": "0xb0ec0570211d20D71D52f91ea6744C062a204F3A",
    "userId": "841622517"
  }
}