{
  "manageEntity": {
    "action": "Update",
    "entityId": "810972671",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x3c40ba3673a326142b579328bf3593c4803292e799ad0ee8c17f705620eae633",
    "signature": "0x254afc60ad00cb2fa99a28894dd6a85b89ce965d4d73b54077154b600ebca9901e9f23ddd4e687c97e3c8d2f68f5072bbe1008fc37ee05edad02ca92510300871b",
    "signer": "0x9dF138917EadE34623A5056348b85D88c667b62e",
    "userId": "810972671"
  }
}