{
  "manageEntity": {
    "action": "Update",
    "entityId": "224019652",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x6f76ae0b7196c22227fd615aa28572d03734a60a36c2fba8943741d79e2683a4",
    "signature": "0x9f642cc47ab64b77a203a439296d4fe79fa7dcc45ed2d9584ee605c2fe30a78d4d5b043e69fb926757d7ac0a460765204f8aeb1a96a6bd928a5df190cf657ce11b",
    "signer": "0x7964a5eF7E9a780013d3886B40ca04443D69588D",
    "userId": "224019652"
  }
}