{
  "manageEntity": {
    "action": "Update",
    "entityId": "595622456",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x87ee4a9d9ca0576398e41ec1e0ccc876904a825249064a14f6951ba180b7027d",
    "signature": "0xdae15eba1cfaaff16ace3f1f04e82903706ed59b49eff0c51e1f602810df73c975af83b81c7698f2584734076ff0fcf81882cb9ef4fa2998a686a5a6a6e82a101b",
    "signer": "0xC8a2D4De6500FfEb2FC29DF459E04c65307Ec114",
    "userId": "595622456"
  }
}