{
  "manageEntity": {
    "action": "Update",
    "entityId": "327627218",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xf9053780fbb328452c1072408b139a9bf827247c1bef44ae36c76b0d8e05bcde",
    "signature": "0xcf620a814224f461248a24678c31292eb0dc847728be207e99d526152ecd17896d05a59971d9d8caad2e6ba93764fcf83d759fc35c93289fc1520691a65895cb1c",
    "signer": "0xd436c10bBFA032b075341dDC96d57e0e948ad8b4",
    "userId": "327627218"
  }
}