{
  "manageEntity": {
    "action": "Create",
    "entityId": "505398436",
    "entityType": "Track",
    "metadata": "{\"cid\":\"\",\"data\":{\"track_id\":505398436,\"field_visibility\":{\"mood\":true,\"tags\":true,\"genre\":true,\"share\":false,\"play_count\":false,\"remixes\":true},\"genre\":\"Spoken Word\",\"isrc\":null,\"is_unlisted\":true,\"iswc\":null,\"license\":null,\"is_stream_gated\":false,\"stream_conditions\":null,\"allowed_api_keys\":null,\"is_download_gated\":false,\"download_conditions\":null,\"title\":\"43 - Celle qui sait - Chapitre 43\",\"duration\":1008,\"audio_upload_id\":\"43999749f18bfc8f18a9f4cbb81b4935\",\"track_cid\":\"baeaaaiqsebaxzocdbmpvagtn4fvw2xhokhpfunryjfswejwph56zkq27rwyie\",\"preview_cid\":\"\",\"orig_file_cid\":\"baeaaaiqsebvx75w765jleth5tqdptgs3xu7wcas5q6phwci66m4k3citlp7va\",\"orig_filename\":\"43 - Celle qui sait - Chapitre 43.mp3\",\"is_downloadable\":false,\"is_original_available\":false,\"is_playlist_upload\":true,\"ddex_release_ids\":null,\"ddex_app\":\"\",\"parental_warning_type\":null,\"bpm\":160,\"is_custom_bpm\":false,\"musical_key\":\"E flat minor\",\"is_custom_musical_key\":false,\"comments_disabled\":false,\"is_scheduled_release\":false,\"owner_id\":426957304,\"audio_analysis_error_count\":0,\"cover_art_sizes\":\"baeaaaiqsedpllciels4gn5wwxobluvyza7fjha2pwdh5egntnmgsncyuqa7gu\"}}",
    "nonce": "0x8334fe7dcc9985e02315acf6032934a22c80c3b11157267b4c3dcc7a760e9e60",
    "signature": "0x19291af36501f1c0605301b70bc50200f5fdd90bc2155d825afaccf08e1d8a625b4a567044a055deef2a5ac60fbcce4d283ae3c2e155f9caf725163b815c36f81b",
    "signer": "0xEE8e9f9CBB51aaaA47B347678D6344cfCFa29F00",
    "userId": "426957304"
  }
}