{
  "manageEntity": {
    "action": "Create",
    "entityId": "2120759244",
    "entityType": "Track",
    "metadata": "{\"cid\":\"\",\"data\":{\"track_id\":2120759244,\"description\":\"\",\"field_visibility\":{\"mood\":true,\"tags\":true,\"genre\":true,\"share\":true,\"play_count\":true,\"remixes\":true},\"genre\":\"Pop\",\"isrc\":\"\",\"is_unlisted\":false,\"iswc\":\"\",\"license\":null,\"mood\":\"Sentimental\",\"is_stream_gated\":false,\"stream_conditions\":null,\"is_download_gated\":false,\"download_conditions\":null,\"tags\":\"\",\"title\":\"Однажды\",\"duration\":178,\"audio_upload_id\":\"1521f1ed69256adcfd58b8b328b4f852\",\"track_cid\":\"baeaaaiqsed75bfooaegogm6exymx4pafv33r6dkjntpwexrl53kel6hfiiqbs\",\"preview_cid\":\"\",\"orig_file_cid\":\"baeaaaiqsea3wlsks4lwr2gicxcdytazmojxbeermqimeqy7rncnik32lbk77q\",\"orig_filename\":\"Однажды.mp3\",\"is_downloadable\":false,\"is_original_available\":false,\"ddex_release_ids\":null,\"ddex_app\":\"\",\"parental_warning_type\":null,\"bpm\":156,\"is_custom_bpm\":false,\"musical_key\":\"A minor\",\"is_custom_musical_key\":false,\"comments_disabled\":false,\"is_scheduled_release\":false,\"owner_id\":693659852,\"audio_analysis_error_count\":0,\"cover_art_sizes\":\"baeaaaiqseacf2z2feb6cxwr5yuxi6hrvxxokp44wp5aob5iryijdje3izwegy\"}}",
    "nonce": "0x4f5e29ab90d4c93e03d3b662feb3114b8b820beb3a5cf20fd6b5fb15cca8e9d5",
    "signature": "0x9591f61ecaa22653ca20345124cfacfa44e21a26688cc757f7aa6b61230e2eff2a44a861ff914067eb617bb1228f31de9d77cf514a4498f470165c81cbbc4d361b",
    "signer": "0x2A7605b91fFB317Bc4CCaa145120a20f7ED40f9b",
    "userId": "693659852"
  }
}