{
  "manageEntity": {
    "action": "Update",
    "entityId": "813191556",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x13f93d30954e970c82da6464ac19e2da161cbe07ad16dcfdd11adb2ea79bee5e",
    "signature": "0xae07f6853129ebf718013fc5b5c14bb67d5476affd749c6c104244a19ba0399f3a0761dedc1d5b659fa94f21dd1a78cb5ddda2a4f02126e7230906780cb00d9c1c",
    "signer": "0x2e9A7dF19A825c04705f3e3E32B1Fa34E81FEd8A",
    "userId": "813191556"
  }
}