{
  "manageEntity": {
    "action": "Update",
    "entityId": "163441607",
    "entityType": "Track",
    "metadata": "{\"cid\":\"\",\"data\":{\"track_id\":163441607,\"owner_id\":330007645,\"description\":\"synth ambiance\",\"field_visibility\":{\"mood\":true,\"tags\":true,\"genre\":true,\"share\":true,\"play_count\":true,\"remixes\":false},\"genre\":\"Ambient\",\"isrc\":\"usdy42219323\",\"is_unlisted\":true,\"iswc\":\"T3108578612\",\"license\":\"All rights reserved\",\"mood\":\"Peaceful\",\"is_stream_gated\":false,\"stream_conditions\":null,\"allowed_api_keys\":null,\"collaborators\":[],\"is_download_gated\":false,\"download_conditions\":null,\"tags\":\"sleep,massage,background,peaceful,soft,meditation,healing,therapy,relaxation,calm\",\"title\":\"Suspended Slumber\",\"duration\":366,\"audio_upload_id\":\"01KCGWTGV39BTQY9Z272N0A0Y7\",\"track_cid\":\"baeaaaiqseazqbb2cwxivdf6wvqcnxfk5woldwhdvlbp6ppxb5ju2hzrw4aupo\",\"preview_cid\":\"\",\"orig_file_cid\":\"baeaaaiqsebzlshgzwcpydyok7m6qmoyphptjvifivxlgetde5mtofybliglf6\",\"orig_filename\":\"Suspended Slumber.wav\",\"is_downloadable\":false,\"is_original_available\":false,\"ddex_release_ids\":null,\"ddex_app\":\"\",\"parental_warning_type\":null,\"bpm\":122,\"is_custom_bpm\":false,\"musical_key\":\"C major\",\"is_custom_musical_key\":false,\"comments_disabled\":false,\"is_scheduled_release\":false}}",
    "nonce": "0x701459c8cb7c294cd6230d9b4e3d8d6e0161eef900fadd80ef571659be830c83",
    "signature": "0x2453e56c56f040f535e7b187e2216e2eb8f25b72f26802a9f45f8588116c69286caf5bc00b1a7b855dfc2d1a1764692efdfb3aa703e7ac39a2c1fe167816ea811c",
    "signer": "0x11DF122f21E5208E833A0d395cDD14EA37de5b5C",
    "userId": "330007645"
  }
}