{
  "manageEntity": {
    "action": "Update",
    "entityId": "224019652",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x4130c66d7148a29b8fa0e522e99ac1a6a0bb6c6ea79af64949e32385a4aaf606",
    "signature": "0x11fb33999b1eff85d53535ac8c22ec703c7b7682a92b22fac53ea67ddf6480e11183b1d2ed5a78d373ada99116c29b5fd51624be3f402419e93208f86dd90ddd1b",
    "signer": "0x7964a5eF7E9a780013d3886B40ca04443D69588D",
    "userId": "224019652"
  }
}