{
  "manageEntity": {
    "action": "Update",
    "entityId": "597485885",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x8d5192fd9ceed1ab611e5e8f034d42378cb68ad35ef237c4833ea33d73d3285b",
    "signature": "0xb5d88ef615566064d05333a4ecd609d5aa27d4acc45b80675b5463373ec1a7a70ed46e85258c4792a128192a2bd965ee33ad15632697b2d9b9d74854be4149e71c",
    "signer": "0x17107e419c414445bd739673071B5d474D7d2206",
    "userId": "597485885"
  }
}