{
  "manageEntity": {
    "action": "Update",
    "entityId": "401235853",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xcac1e7b8d89f0ddac3e06b277bd83882741cd95edc3bb9c0746aaf48be79cb96",
    "signature": "0x20896eaf32a6478b130297d22117fc1a46d72f368bdfe6e04fa27b6f29ec5038762f2e36750b225d49184d6d2ca9254cdfff9f11f87f5fe38620ff96ef7195c81c",
    "signer": "0xC982f8B52eee7F9710Edeb184eA0a7401A3C79fC",
    "userId": "401235853"
  }
}