{
  "manageEntity": {
    "action": "Update",
    "entityId": "598288959",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x9f567a181674d784efdc3b704d101d4b993aac1b57e7a5c8c2cd21f4d8f1f9ac",
    "signature": "0x6ee79ef3b57985af97690cf7cc94aa725524ef2fcc1b42fc91ed04442802112a59158d542a7c3ee2c752c3bec646c48bd4908a11f8a50454203e1b22cfd7f6421c",
    "signer": "0xF28111f00331ab6fe0FD9EDCeccf86649C599c04",
    "userId": "598288959"
  }
}