{
  "manageEntity": {
    "action": "Update",
    "entityId": "920333048",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x5d0d26c51bfa890d8b1ed31d071826c0c556d36fb341d9cd7d65709006d4b3e7",
    "signature": "0x607fa56afa944dffe9e34b013447d5a8d9dfb6efaa417434fba74f6ddef273971cd4d5dd5fad9decd29c0f7c54cc6ad598639caf33a3cd94ae8e2b317e9f688e1b",
    "signer": "0x949F6b40133FD2b19ec9BA66FB86B1F9946588Fe",
    "userId": "920333048"
  }
}