{
  "manageEntity": {
    "action": "Update",
    "entityId": "90129335",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xcafb2c511c4f6601e4cd65b3babd7ba7f549d920b8fe36ba6521a15dbd469290",
    "signature": "0x82576ba05dfbee2a535e5fa7b854b9d8f34f62e228b8c519fcf9875a90834fdd6900bd646cd8f122ff62b538b99ce87adc39e9edacb65cd6dd22b8e95351bd1e1c",
    "signer": "0xe45993638Ef4ca9ce605df45C2cd924d8539B116",
    "userId": "90129335"
  }
}