{
  "manageEntity": {
    "action": "Create",
    "entityId": "935716615",
    "entityType": "Track",
    "metadata": "{\"cid\":\"\",\"data\":{\"track_id\":935716615,\"description\":\"\",\"field_visibility\":{\"mood\":true,\"tags\":true,\"genre\":true,\"share\":true,\"play_count\":true,\"remixes\":true},\"genre\":\"Electronic\",\"isrc\":\"\",\"is_unlisted\":false,\"iswc\":\"\",\"license\":null,\"is_stream_gated\":false,\"stream_conditions\":null,\"allowed_api_keys\":null,\"is_download_gated\":false,\"download_conditions\":null,\"tags\":\"\",\"title\":\"Heartline Frequency\",\"duration\":209,\"audio_upload_id\":\"56b69062e5842997cdd8250e1fcaf227\",\"track_cid\":\"baeaaaiqsec3zxrslijoftptyezfhki5jbe6ue4v3ewhv74jk32r46uhypjz6a\",\"preview_cid\":\"\",\"orig_file_cid\":\"baeaaaiqseciulg4q6jxgqekshedyrqqmzr6p5omq3pxj22xgnkaxxenwbdvn4\",\"orig_filename\":\"e86b037d-c693-4ff8-897e-27821411b076.mp3\",\"is_downloadable\":false,\"is_original_available\":false,\"is_playlist_upload\":false,\"ddex_release_ids\":null,\"ddex_app\":\"\",\"parental_warning_type\":null,\"bpm\":125,\"is_custom_bpm\":false,\"musical_key\":\"E flat major\",\"is_custom_musical_key\":false,\"comments_disabled\":false,\"is_scheduled_release\":false,\"owner_id\":266430962,\"audio_analysis_error_count\":0,\"cover_art_sizes\":\"baeaaaiqsebrh45inwdrvynjsw6iuahfltvwyqd2n63jzlthuwo2ieuxetn656\"}}",
    "nonce": "0x6a3912e5d4d056694f2362d9d486da04004ad045c3d00e31f16abec7266c36ea",
    "signature": "0x70e3ad495d82e06f584b4d4fbcdf54d16ea561185cd4fd9255e391ededf6c1d349404cb4817c6a5f76cf392a15e59eeb6d980233f79c10aa6ac9fa383de2b50d1b",
    "signer": "0x01f9B33Bc89e93317F0DCb659e270ab0E751d541",
    "userId": "266430962"
  }
}