{
  "manageEntity": {
    "action": "Create",
    "entityId": "911235263",
    "entityType": "Track",
    "metadata": "{\"cid\":\"\",\"data\":{\"track_id\":911235263,\"description\":\"本曲灵感来源于一则令人痛心的真实事件：一名少女遭居心叵测的伪友精神操控，最终自残并走向轻生。作品以理性通透的哲思，探讨生命与自我价值。\",\"field_visibility\":{\"mood\":true,\"tags\":true,\"genre\":true,\"share\":true,\"play_count\":true,\"remixes\":true},\"genre\":\"Spoken Word\",\"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\":\"consciousrap,hiphouse,electropop,mandopop,chineserap\",\"title\":\"众星孑然 Somebody_Nobody\",\"duration\":159,\"audio_upload_id\":\"5afc6f6ef8801377a3f92dc8711bdbd0\",\"track_cid\":\"baeaaaiqsebklotfn265elt32zhdyil3t234xze7e6vddpckvxrsorlscoda2o\",\"preview_cid\":\"\",\"orig_file_cid\":\"baeaaaiqseclw4qp7xi2tfg6wrfxos6yxu2fm2jplbrmed7ss7dctysrln5njm\",\"orig_filename\":\"众星孑然 Somebody_Nobody.mp3\",\"is_downloadable\":false,\"is_original_available\":false,\"is_playlist_upload\":false,\"ddex_release_ids\":null,\"ddex_app\":\"\",\"parental_warning_type\":null,\"bpm\":84,\"is_custom_bpm\":false,\"musical_key\":\"E flat minor\",\"is_custom_musical_key\":false,\"comments_disabled\":false,\"is_scheduled_release\":false,\"owner_id\":74596186,\"audio_analysis_error_count\":0,\"cover_art_sizes\":\"baeaaaiqsedgraj5rzeip23hybobek3n4nkdggfncbcysxnvs3v3x2bzgykj3y\"}}",
    "nonce": "0x2a2cfdd71c5a50c8f226a1a0f02bc4c3ed8e700249451502c3f630d680d82866",
    "signature": "0x6b2351f3c41278b3988476d495dd78230f72d6b804f05656d784f0e31c3021a943cd146eb8446b6003e81d69e55c6fb60f42171f3d268aa917fcf93996aa45681b",
    "signer": "0x4B03B9450DcE329d16f317309777a1ddDF894705",
    "userId": "74596186"
  }
}