{
  "manageEntity": {
    "action": "Create",
    "entityId": "489793150",
    "entityType": "Track",
    "metadata": "{\"cid\":\"\",\"data\":{\"track_id\":489793150,\"description\":\"\",\"field_visibility\":{\"mood\":true,\"tags\":true,\"genre\":true,\"share\":true,\"play_count\":true,\"remixes\":true},\"genre\":\"Hip-Hop/Rap\",\"isrc\":\"\",\"is_unlisted\":false,\"iswc\":\"\",\"license\":null,\"is_stream_gated\":false,\"stream_conditions\":null,\"is_download_gated\":false,\"download_conditions\":null,\"tags\":\"\",\"title\":\"NF-feat-mgk-WHO-I-WAS-(SixLoaded.com)\",\"duration\":181,\"audio_upload_id\":\"f5fc3537137c0ffadd21c3a3a25dbfa7\",\"track_cid\":\"baeaaaiqsebjdsacrmswbhseplclwwgk34q5oo7wgobsf4mghyw5woimv734vs\",\"preview_cid\":\"\",\"orig_file_cid\":\"baeaaaiqsebwcsikyjelhqvtx2yll5viam65cfjtre2x5qefppnhdmsibgv4vo\",\"orig_filename\":\"NF-feat-mgk-WHO-I-WAS-(SixLoaded.com).mp3\",\"is_downloadable\":false,\"is_original_available\":false,\"ddex_release_ids\":null,\"ddex_app\":\"\",\"parental_warning_type\":null,\"bpm\":134,\"is_custom_bpm\":false,\"musical_key\":\"B flat minor\",\"is_custom_musical_key\":false,\"comments_disabled\":false,\"is_scheduled_release\":false,\"owner_id\":195587496,\"audio_analysis_error_count\":0,\"cover_art_sizes\":\"baeaaaiqseduuxp63mt7huhdzkdqxo7bl3bxjax3x4wgndgvri4wypohxc6xjy\"}}",
    "nonce": "0xfefb397f9f3ebc359597b33e7b0047fec0e1b94f5ac934cd6769eb21c474afbe",
    "signature": "0x43e73412340bc331b6bbf7797dc0c807d9db285b6d157afd045889ae8ceb3b4d069d100aeaa8e770e8be9d40a9c3482927eed69ac421a07f83e215c9908f170b1b",
    "signer": "0xd82Ab08e57eD7d37BEc21c7E77611C8dB4F04E26",
    "userId": "195587496"
  }
}