{
  "manageEntity": {
    "action": "Update",
    "entityId": "410718605",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xfd168cf9c4f07892fbc5c61c9e79f722ba341fec204c8d2a07a4c1fec47e6c65",
    "signature": "0xaefb6092b75485e9ce5f52f5aa59c746599834b1b5cd466bc42266979a6f36bf2d427bd209c07c3fc0887b94018469a7dda52a04916449b3e161da71c992f80f1c",
    "signer": "0xc491DB77847e3156B64923635C177F4519cE81Fd",
    "userId": "410718605"
  }
}