{
  "manageEntity": {
    "action": "Update",
    "entityId": "230109234",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x0e0664ef151482504d1a97312833bd99b3d85e241eebb25bf9f9827aeaa747ed",
    "signature": "0x2888c5654f74318b88d7bd8fcbdf26abb080b132017a0a1a1a9d215388765a235de33110e5bc18051d6f833faba66e15c0a9a95ca84a25badc35415f996258071b",
    "signer": "0x4f24EFcc0f8174B7836f5EBbeBd72AF3f1746E74",
    "userId": "230109234"
  }
}