{
  "manageEntity": {
    "action": "Update",
    "entityId": "713783640",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x38ce0b6035c5f518f11d12dbf498ea920974c9bcbc9dd2b769e47f245247e155",
    "signature": "0x1cb5e35e93467b7c0410baa950357562abc5838f8a293022c409b3c3c267b27923b2d04d2d49703ed0a2e6e3d240eee94814778a43a26151cbf228844d316a891c",
    "signer": "0xF5a4f8fCD6d35F4AF037631D92a627E42c6B9BF1",
    "userId": "713783640"
  }
}