{
  "manageEntity": {
    "action": "Create",
    "entityId": "405274952",
    "entityType": "Track",
    "metadata": "{\"cid\":\"\",\"data\":{\"track_id\":405274952,\"description\":\"\",\"field_visibility\":{\"mood\":true,\"tags\":true,\"genre\":true,\"share\":true,\"play_count\":true,\"remixes\":true},\"genre\":\"Techno\",\"isrc\":\"\",\"is_unlisted\":false,\"iswc\":\"\",\"license\":null,\"mood\":\"Yearning\",\"is_stream_gated\":false,\"stream_conditions\":null,\"allowed_api_keys\":null,\"is_download_gated\":false,\"download_conditions\":null,\"tags\":\"\",\"title\":\"let me down\",\"duration\":86,\"audio_upload_id\":\"9c8c0cf765331718dbcfe64716b00f29\",\"track_cid\":\"baeaaaiqsedb3ftodtdqcra5ezebcf5zk7qia3f7wy56rjilzlz7p6ooqogack\",\"preview_cid\":\"\",\"orig_file_cid\":\"baeaaaiqsecydcr75mabundzjsa5wjekzofkhwyabl5tsjnew64wyjxj4w55hw\",\"orig_filename\":\"gsgsga.wav\",\"is_downloadable\":false,\"is_original_available\":false,\"is_playlist_upload\":false,\"ddex_release_ids\":null,\"ddex_app\":\"\",\"parental_warning_type\":null,\"bpm\":144,\"is_custom_bpm\":false,\"musical_key\":\"D minor\",\"is_custom_musical_key\":false,\"comments_disabled\":false,\"is_scheduled_release\":false,\"owner_id\":50722,\"audio_analysis_error_count\":0,\"cover_art_sizes\":\"baeaaaiqsed76uqndi3koc2y5obzhqixmabgb5kxznoyqaeflq6ycv4qybutuq\"}}",
    "nonce": "0x57875c31bb23037be1b1b9dd13cf0f5b5b3cfdc98f5954071a4e39252401af8d",
    "signature": "0x2c52cb935ad53cfe8871f27df04bfa81c91b71ec6a3d79a70a8216f0a0a4f7c22d09992cfae1e2d99d8664fcf2bb29c7d3e4aecffdcdff56ce660f5c2dfcb39d1b",
    "signer": "0x406e72F6E0477C3f341Eba89411b7939AEF4533B",
    "userId": "50722"
  }
}