{
  "manageEntity": {
    "action": "Update",
    "entityId": "248649109",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieraeatwsraoelhxkojwhtbpb5xc6cjwll3kwm7pcznjfttlepufv62a\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":2039172351}]}}}",
    "nonce": "0x3ceaf22bb7d276c1f2379757e0c4b7e95ffb9500587086e81ec312514ff660a8",
    "signature": "0x7c18fbf6373df230a27be7bc84d41ac73e92157a71cf8312de856d82923472c35b8511c3cdbaa513b64198d8af9a46431838db7062e4b6bd46fcc4ff0ba658251b",
    "signer": "0x202dF8cC0c1C8a607838723f0158d60EEB28acDE",
    "userId": "248649109"
  }
}