{
  "manageEntity": {
    "action": "Update",
    "entityId": "149964308",
    "entityType": "Track",
    "metadata": "{\"cid\":\"\",\"data\":{\"track_id\":149964308,\"owner_id\":753406205,\"field_visibility\":{\"mood\":true,\"tags\":true,\"genre\":true,\"share\":true,\"play_count\":true,\"remixes\":false},\"genre\":\"Electronic\",\"isrc\":null,\"is_unlisted\":false,\"iswc\":null,\"license\":null,\"mood\":\"Defiant\",\"is_stream_gated\":false,\"stream_conditions\":null,\"allowed_api_keys\":null,\"is_download_gated\":false,\"download_conditions\":null,\"release_date\":\"2016-07-15T05:00:00.000Z\",\"title\":\"Can You Listen?\",\"duration\":369,\"audio_upload_id\":\"dd5d145208cca9408629a423595e2e7b\",\"track_cid\":\"baeaaaiqsebqcvhlifwcyq4absfede4riakrgozyc6lplp6r32fvvzq6kvsgoi\",\"preview_cid\":\"\",\"orig_file_cid\":\"baeaaaiqsebcx443qsdw4oo7v2z2cu33padlvh4zcfxltlxtv4htmqkgz35uie\",\"orig_filename\":\"[RoL01] Zirex - Can You Listen.wav\",\"is_downloadable\":true,\"is_original_available\":true,\"ddex_release_ids\":null,\"ddex_app\":\"\",\"parental_warning_type\":null,\"bpm\":128,\"is_custom_bpm\":false,\"musical_key\":\"C minor\",\"is_custom_musical_key\":false,\"comments_disabled\":false,\"is_scheduled_release\":false}}",
    "nonce": "0x6f3d78ca199cab6ee3647290f615f74b474edc6172a95b5d720beb1885a77446",
    "signature": "0xaa7a04af6c6d5ca11ee349689fd4b3823e0b5820ec5c0668e08d6cf39851cce7787e04aa73a0672d68a1b845e3e2101a38d66e0e166d5776172a6748a1f227cf1c",
    "signer": "0xA78Fd746fAA824dCb68b68CC13fA9812a1ff2069",
    "userId": "753406205"
  }
}