{
  "manageEntity": {
    "action": "Update",
    "entityId": "726314312",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera64stntg55ozztiqjw2yq74dmgnw7cvobr53y6tw7l4ackz7crg2a\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1607942474},{\"type\":\"playlist\",\"playlist_id\":1110658470},{\"type\":\"playlist\",\"playlist_id\":330864129},{\"type\":\"playlist\",\"playlist_id\":1145784414}]}}}",
    "nonce": "0x7992acc22dfb4bb52fdb38ef94be4dc66dd35d97f4273ee52c6bed4dd89531ee",
    "signature": "0x4014a13e590d78475637b29a5fb15f239b17b09eb7b76c0b42dc386e94473bd0619b8e00d231cc07c68af5393bf9628edc62febdb5a8050ecf4e2ee9445331841c",
    "signer": "0x10cB9Ce4F77e218CD9Aa08f7571669CEAE89842F",
    "userId": "726314312"
  }
}