{
  "manageEntity": {
    "action": "Create",
    "entityId": "149815405",
    "entityType": "Track",
    "metadata": "{\"cid\":\"\",\"data\":{\"track_id\":149815405,\"field_visibility\":{\"mood\":true,\"tags\":true,\"genre\":true,\"share\":true,\"play_count\":true,\"remixes\":true},\"genre\":\"Pop\",\"isrc\":null,\"is_unlisted\":false,\"iswc\":null,\"license\":null,\"mood\":\"Peaceful\",\"is_stream_gated\":false,\"stream_conditions\":null,\"allowed_api_keys\":null,\"is_download_gated\":false,\"download_conditions\":null,\"release_date\":\"2026-05-13T06:22:01.000Z\",\"title\":\"Alto_HandDrum_Still\",\"duration\":303,\"audio_upload_id\":\"58fb503127ae915800ac7c04d300c3af\",\"track_cid\":\"baeaaaiqseb2l7edtxn7wfifeov6bf6zpholoc54dh4palr4rp6l65nub3gcx6\",\"preview_cid\":\"\",\"orig_file_cid\":\"baeaaaiqseblypb6kzkllhpfh64ykasr2tl2q2se5eqwb25hh6zpkeo4mrekh4\",\"orig_filename\":\"Alto_HandDrum_Still.mp3\",\"is_downloadable\":false,\"is_original_available\":false,\"is_playlist_upload\":true,\"ddex_release_ids\":null,\"ddex_app\":\"\",\"parental_warning_type\":null,\"bpm\":141,\"is_custom_bpm\":false,\"musical_key\":\"C major\",\"is_custom_musical_key\":false,\"comments_disabled\":false,\"is_scheduled_release\":false,\"owner_id\":291292101,\"audio_analysis_error_count\":0,\"cover_art_sizes\":\"baeaaaiqseb4ydyhu2v3spit23u4sdts2dq4p65avyxgmwpbinfgybc34vv4ek\"}}",
    "nonce": "0xd6e5609a95b6645dbf49af284a9496b63173f20779ec7338523c2e536b68cdde",
    "signature": "0xea99af85225c48a0fa445edb3a6b87fcc5243f1c86ffcf98887751111d8523e62c046d1591ecb84b694a53300850b32f661e22e0326d8f71776cd70ec53467481b",
    "signer": "0x754D21FB8ff30C69838243D5CD84E9F9B71ebA8b",
    "userId": "291292101"
  }
}