{
  "manageEntity": {
    "action": "Update",
    "entityId": "469167571",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieram5n2ous5vp25jq7stmggwftubsbdogex6twcxrzpylualyg7nfcq\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1332585669},{\"type\":\"playlist\",\"playlist_id\":2084958373},{\"type\":\"playlist\",\"playlist_id\":881678761},{\"type\":\"playlist\",\"playlist_id\":547427312}]}}}",
    "nonce": "0xfd9a33cc42f217295decf6574041a0c56dccaf7c99488ec2c70872756031c4eb",
    "signature": "0x684099300bd0d1e3f137aa738ec506c03e9c6907cd22e9ff757303412415104b3242422ebfb937c2535c66c04699abfb0420c592ad871bc77cf4c1763a4575611b",
    "signer": "0xD8a51B5826a7BF17e04f70223177e89259D8ab3b",
    "userId": "469167571"
  }
}