{
  "manageEntity": {
    "action": "Update",
    "entityId": "827836038",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x4cfe55cb46eeff6dbc0ea29c0890dfbf6df24cfba4a3d725d41d2e2722d20ff6",
    "signature": "0xf224dd4b8c201e9c1eb2a7f5d46a65e626078502ea04808b221aea59edee029871e986149ddf802b4abd52713660d618a7ae57f6857918329fca0e8d60cc204b1c",
    "signer": "0x358e78d2E30191CeD0A0FCbf380431645ab3Dc1d",
    "userId": "827836038"
  }
}