How to get all rows from a given JSON?

Question

JSON

How to get all rows from a given JSON?
The number and arrangement of lines may vary. Is there any single method? Maybe a verification cycle?

{"text":"","extra":[{"text":"[","color":"white"},{"text":"Server","color":"gold"},{"text":"]\n\nВы не прошли проверку, возможно вы бот\n","color":"white"},{"text":"Если это не так, пожалуйста повторите попытку","color":"gray","italic":true}]