{
  "manageEntity": {
    "action": "Update",
    "entityId": "269481253",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xd088c0e2393a77d91ea491143f2c49650c2856a9fccf7f9f01a2eddaf7139f8a",
    "signature": "0xfb882504466a99f167de41635ec01c1dfe7b2e429dc76b8bbd0bfb59fed563862f2081793c6a70a30b34e1853e4371dadbec14e4ded38f806050b79cd2fc0d381b",
    "signer": "0xb821A3cB073D15E1662563cCbab856A4F53eB771",
    "userId": "269481253"
  }
}