{
  "manageEntity": {
    "action": "Update",
    "entityId": "989062709",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierajpd7rdj4lphvt5jqrvawncerksp22b7jd3bc344qjwbbxoev2doq\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1316150032}]}}}",
    "nonce": "0x9de32f1c7bf946b0d89fa96aaf72accfe8dc0f218881f2d84a58becb4cd62ebf",
    "signature": "0xdf61ed221d9922335793a6e98473675a9d1f2665e95a47b20dc439177958223a6a289c6f4b7d8a07c3305b2b2bb8cad0ab73774524079d0c96a7728797ea30ca1b",
    "signer": "0x651f67F237c31877702bbEEB7254aA3f066CeF47",
    "userId": "989062709"
  }
}