{
  "manageEntity": {
    "action": "Create",
    "entityId": "587662823",
    "entityType": "Track",
    "metadata": "{\"cid\":\"\",\"data\":{\"track_id\":587662823,\"field_visibility\":{\"mood\":true,\"tags\":true,\"genre\":true,\"share\":false,\"play_count\":false,\"remixes\":true},\"genre\":\"Electronic\",\"isrc\":null,\"is_unlisted\":true,\"iswc\":null,\"license\":null,\"mood\":\"Other\",\"is_stream_gated\":false,\"stream_conditions\":null,\"allowed_api_keys\":null,\"is_download_gated\":false,\"download_conditions\":null,\"title\":\"Savana 909_r1\",\"duration\":233,\"audio_upload_id\":\"ca5f237b7fb6a60a905f06948b70c8cd\",\"track_cid\":\"baeaaaiqsebumkygi6u5tv3pd5ysykptv6qodmtzos3arfwuyyxavnnwrkpdy4\",\"preview_cid\":\"\",\"orig_file_cid\":\"baeaaaiqsecfcqcmbgzgrmulp7mc3c5umt56tlc3b4mmyll47e7myto7drvofa\",\"orig_filename\":\"Savana 909_r1.wav\",\"is_downloadable\":false,\"is_original_available\":false,\"is_playlist_upload\":true,\"ddex_release_ids\":null,\"ddex_app\":\"\",\"parental_warning_type\":null,\"bpm\":136,\"is_custom_bpm\":false,\"musical_key\":\"E minor\",\"is_custom_musical_key\":false,\"comments_disabled\":false,\"is_scheduled_release\":false,\"owner_id\":620921422,\"audio_analysis_error_count\":0,\"cover_art_sizes\":\"baeaaaiqsecrfz5yzyb5slmmpwada4y4noeq622wkuaz5mox7ggek4v7gbqlvu\"}}",
    "nonce": "0x0230fa42114b11fa83127d20e910457795d5e46a64ff72c81659f759a1bfd24b",
    "signature": "0xaf3754ed105ec4439256620be0d5b069ff26940b6989bc53e054ac8b8f9226be2f7ec6dac555057f23040d318d73d86a2279940a67edde9e7232752c1e6a3af11c",
    "signer": "0xdfcc4d06D5B8A0AF1AF77B1Ec434e5F50B625a75",
    "userId": "620921422"
  }
}