{
  "manageEntity": {
    "action": "Update",
    "entityId": "266646668",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x4acbd3f99f17cdd2b6402b94b30d55a79d6319f659f6b3ea5476740fba8cee7d",
    "signature": "0xbc8f94174b67ba4e4e75b689c10442e1bbd0a54d55be60ca3e6a417fb5f9dca0117709e3dbe059154f675e5c717439598846275e96bc571e960e488c51c8328f1c",
    "signer": "0x6e0E2d70aa2F34f687b4b7d7076ACE86a19d1A5F",
    "userId": "266646668"
  }
}