{
  "manageEntity": {
    "action": "Update",
    "entityId": "655330192",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xe1dad89a0b6da79fbbf507bf459d21a693372f13f286799218a2f6874ec62b4d",
    "signature": "0xb03c34f8e79a77e81fabb6012fb20221025ec79503c2674a4ce47605ab4c2bfa234d677bebeb15a71c6625b337667762c56217b75491b1bb760bd2b8f9dabbf51c",
    "signer": "0x76cC992D9091fd0de734053486Da5F376377bfE3",
    "userId": "655330192"
  }
}