{
  "manageEntity": {
    "action": "Update",
    "entityId": "839909525",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x6569d74b9cf195014c3e7c5edde887e45c7c989c77f0dbb472001591d7da9f62",
    "signature": "0x8d7b07afebfed9be06196faaaedc2264322e6449245ee11a173d59770a42495843f4b0ac79d48743b1693b649c756df9a018ad7ea55747303f542e8da282e6691c",
    "signer": "0x1BF18676e3272039E0bF8f2a021954D13cC10a6F",
    "userId": "839909525"
  }
}