{
  "manageEntity": {
    "action": "Create",
    "entityId": "411415785",
    "entityType": "Track",
    "metadata": "{\"cid\":\"\",\"data\":{\"track_id\":411415785,\"description\":\"\",\"field_visibility\":{\"mood\":true,\"tags\":true,\"genre\":true,\"share\":true,\"play_count\":true,\"remixes\":true},\"genre\":\"Sad Pop\",\"isrc\":\"\",\"is_unlisted\":false,\"iswc\":\"\",\"license\":null,\"mood\":\"Sentimental\",\"is_stream_gated\":false,\"stream_conditions\":null,\"allowed_api_keys\":null,\"is_download_gated\":false,\"download_conditions\":null,\"tags\":\"\",\"title\":\"Door of Heaven\",\"duration\":253,\"audio_upload_id\":\"714b25739471ab834d5014f48b1f9554\",\"track_cid\":\"baeaaaiqsed5l576obl2saxkvoika5rhnfpo3akdlsuwehx23porb4ae7xbwze\",\"preview_cid\":\"\",\"orig_file_cid\":\"baeaaaiqsedfr7lherjes6vpyodi66gzfbsbfoei5xsbipc3sk2vy7x3aizshu\",\"orig_filename\":\"Door of Heaven.wav\",\"is_downloadable\":false,\"is_original_available\":false,\"is_playlist_upload\":false,\"ddex_release_ids\":null,\"ddex_app\":\"\",\"parental_warning_type\":null,\"bpm\":130,\"is_custom_bpm\":false,\"musical_key\":\"E major\",\"is_custom_musical_key\":false,\"comments_disabled\":false,\"is_scheduled_release\":false,\"owner_id\":6709621,\"audio_analysis_error_count\":0,\"cover_art_sizes\":\"baeaaaiqsea6vsqfktqjzoou54jcgxpbyd2g7joxzof3rntmubn567xhh2uk4i\"}}",
    "nonce": "0xaf3bc97d1eb4c09f31bc74a802c07600cc02328049b82a6da82f8d0ded8770ea",
    "signature": "0xa98c730e0c6cd2fa23f8ee38808f949f474d421f7a254728c95d8a40bdb319e83f6cb516cc1a7c144236135fccbe2a82330101c99f52ae2ac3e0632a03cf16c21c",
    "signer": "0x388880C51Fe0A374489c325cEC4fFDD7970DF2a4",
    "userId": "6709621"
  }
}