{
  "manageEntity": {
    "action": "Update",
    "entityId": "48788738",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xe8062ad89c5158c592d1fe1345a5d60b6c73946a7c46c67f36848b711c856447",
    "signature": "0x43f5bfd899c5b29e5dc0a88385fbcb4e9b8975935c480cac314fc1678028c8d6645a6fadcf3b6d7f774e84a23e23ed1ca7fd5a7a8170328121520b4b8e182cec1b",
    "signer": "0x570c44bf87B3a6048f1113aE88B3E3e0D7d6F2CD",
    "userId": "48788738"
  }
}