{
  "manageEntity": {
    "action": "Update",
    "entityId": "733215727",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xb2b18d95fda75afda0ab6a937407190c814bedcd50329cea45a349b8fe200388",
    "signature": "0xf87707e4382cd2e7df1b7ff30d0600d3170697c1d37534d1d03fd08b7e964f34501c6748cb5877fbbe86937377e8bebb6a808d31cf4736501163fa5a8162aa321c",
    "signer": "0xA275D81CF2e99e1CBCEEA244Fa82421501e665Bb",
    "userId": "733215727"
  }
}