{
  "manageEntity": {
    "action": "Update",
    "entityId": "31825",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xcbe835cf3950d55040916df37be68c0d99fa317553e7c7a56447cb66456e8571",
    "signature": "0x742bc469394a287a7eee0a71003badc4557e446f56f3ddeab0e06b770b8d36f922c9b2889f54bd9ad38bd3ecfa5a33839e27ddaa1fb1efef08e6c2d72158cd111c",
    "signer": "0x15421F18004D959C79793F0AB31c9c9D388bafAf",
    "userId": "31825"
  }
}