{
  "manageEntity": {
    "action": "Update",
    "entityId": "589537118",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xbba9506bd7c884f8e5b9696bdfbe63e3e6595e52e8352bd9a48d104845e67827",
    "signature": "0x059c01eed5bc724dcd36eb478adc912a31aef0ea78297097749a9b3dfe79f68421eff0cf10103b8e816f8b4909cfaf7d6803125e1d612a58de74e4d21de4cff61b",
    "signer": "0x165C923036e67C353513E94DE00C7Dc599BdBAdA",
    "userId": "589537118"
  }
}