{
  "manageEntity": {
    "action": "Update",
    "entityId": "103076055",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierat33h3rwmni6lcmionus4l4cx4a643u45kxbhc6l5hx6qhitp6qxa\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1509709691}]}}}",
    "nonce": "0x7d844c432f9c6d7af6bc1547c2cb27a3ffa8ac749f5b6d36f86a46d3bc40e4e5",
    "signature": "0x088682035ceb573cf606824ecdac022a011c1d38cf7f7c009ed31929cf8aabe15c9a853488e70bf7c2bdfaa857a050b1ba6c3d8e4b3b857a078fd9b3f93c167c1b",
    "signer": "0xA2a96aeb1cc4DA90EB01C12046d16159737f9AF1",
    "userId": "103076055"
  }
}