{
  "manageEntity": {
    "action": "Update",
    "entityId": "919727692",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x69188de71ba51384236b4f620191126decb52ef0642232f13ef074ae7dd75edb",
    "signature": "0xf2f6cb908560e651761025563fdcc6c30f5a36d49a8adfbb2732edba3c7539f006523c7d255335009707c37f3288b65c151ab675ec1bbfc415a63587575594b61c",
    "signer": "0xF5D40130c22Afe6AacFD1d6daF7A60552e486058",
    "userId": "919727692"
  }
}