{
  "manageEntity": {
    "action": "Update",
    "entityId": "3636854",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierahm27ayikv6jzkenfblgg4cgbbmbdxvfqsbgubh3qgyizirv2xbrq\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1369700879},{\"type\":\"playlist\",\"playlist_id\":1136421125},{\"type\":\"playlist\",\"playlist_id\":734990616}]}}}",
    "nonce": "0x3e78beabbc7e451ea26c86c83bfdcb32c67660a4061b629a75786728291849de",
    "signature": "0x3ba2c6e532249067208197cf9b7370de76f896d43e5e35ed7c9e47e42cd00a1a1ed5a40bf5b27a6f55e72c18fa977929ff39c07635b80b3c920fc57b3e26a23c1c",
    "signer": "0x2e9d3CE541fF1290944eF388dE9759d77881dA4a",
    "userId": "3636854"
  }
}