{
  "manageEntity": {
    "action": "Update",
    "entityId": "386423139",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xd7df72f04f2253896e144b54a015e54932da093b3fd4193146cf5037c60da959",
    "signature": "0xbd2c53c2ed9fd332cee76ff8e664fdcef7c467809d73c64de4889851947f0ea32d1509ba029c29f7aa0585e84914c663f4d27da9df19b98adb9445de3580557b1b",
    "signer": "0xedfD58D5d082Ce843F3f84B08f027aB709BaA5f5",
    "userId": "386423139"
  }
}