{
  "manageEntity": {
    "action": "Update",
    "entityId": "424450069",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xa3b1a7527a94a34efc0a356c011aabcf6ecae99e5a36598f7b9fe7f548301509",
    "signature": "0xcbf7977ab55515838190adcfb13780622c41bad78616c090ec7e23d5a47bc33449135e9aac15fee25778487a77b5ce228f7b7286609d3075df15cc6490c16a4b1c",
    "signer": "0xf5806BE475bF0791a138f4c391459324F07ce2bE",
    "userId": "424450069"
  }
}