{
  "manageEntity": {
    "action": "Update",
    "entityId": "953219535",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera6fesu3o2e6sdh5s3jw4nespxdjw5nf7zsgcubsevsleivuno2qva\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":2102334422},{\"type\":\"playlist\",\"playlist_id\":1358587117},{\"type\":\"playlist\",\"playlist_id\":2066007995}]}}}",
    "nonce": "0xf3691abaf6cc74e06a086dc5cb6c6e2a770a5177729bcc317776d159f0ae1369",
    "signature": "0x5d1d284da51b760ff1961eb63efb3570542da6ecba4bceea84e04b7fc716576f0a8e74ed2b8b43b25846cd77ccf271462251e92728380a82b0e1f2d1233a68831b",
    "signer": "0x165ac7dD4D63a6A37cBa24549d0c710442e9b68b",
    "userId": "953219535"
  }
}