{
  "manageEntity": {
    "action": "Update",
    "entityId": "995186910",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x52070a5afdc69686564c1b5c35080913d78a33c69de8b8415504fa0c43dd4605",
    "signature": "0x6af8196a03e18f34c7297568a1f59e4e68268f23b0302f57dfcf8ff5161faac115f6f10b4e49a52dc8a19e9b09bf67d91fbc22e9332a59a670923b836d4a37da1c",
    "signer": "0xc4ED754a5bBD176F596aF6d483c4b0F8A9B72530",
    "userId": "995186910"
  }
}