{
  "manageEntity": {
    "action": "Update",
    "entityId": "383560128",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x9ad74011d82c1fc01c7c6406afa4701a0d5f986426728eabce7efd2d071d3b4d",
    "signature": "0xa4ea627fa9064a8f50b2cd80ca2ebed7c625029731c27d4cfd1a5e8b111a279c3e5833c6f3e9ca46bad78e4b6d641dae3ad708f5d0ca8c216788d38abbe4af701b",
    "signer": "0x785343dcc008938B9B79e332EF016228A546dB33",
    "userId": "383560128"
  }
}