{
  "manageEntity": {
    "action": "Update",
    "entityId": "541604521",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieram3isyhju424ucnmkj5u4ebe5sblsdglikn26je2skvisypnangbq\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1745785604},{\"type\":\"playlist\",\"playlist_id\":1637921486},{\"type\":\"playlist\",\"playlist_id\":971391981},{\"type\":\"playlist\",\"playlist_id\":1413549811},{\"type\":\"playlist\",\"playlist_id\":1735863645},{\"type\":\"playlist\",\"playlist_id\":47612948},{\"type\":\"playlist\",\"playlist_id\":813566210},{\"type\":\"playlist\",\"playlist_id\":1891449430},{\"type\":\"playlist\",\"playlist_id\":769694261},{\"type\":\"playlist\",\"playlist_id\":509053566},{\"type\":\"playlist\",\"playlist_id\":1127289347},{\"type\":\"playlist\",\"playlist_id\":620153230}]}}}",
    "nonce": "0xd9d486ad12f501ba6257ad48ddb37b9a8d052ffc1b907c02d5615963f976a777",
    "signature": "0x4c4eb6eeb36eca5560b71f7559ccbfc555a407440dd1132b3c63a761f332452845f1a8dbef34fe6dab29161f1317011c0bd0d15b7630675a577e1c86010a0e4f1b",
    "signer": "0x6665D53464AE49523fE036B3620715F3181ef405",
    "userId": "541604521"
  }
}