UPDATE system_config
SET value = '{
  "anonymous_per_minute": 10,
  "anonymous_units_per_day": 10,
  "user_per_minute": 60,
  "api_key_per_minute": 100,
  "login_ip_per_5_minutes": 30,
  "login_identity_per_5_minutes": 10,
  "register_ip_per_hour": 10,
  "verification_email_per_minute": 1,
  "email_verify_ip_per_15_minutes": 20,
  "forgot_password_ip_per_15_minutes": 5,
  "forgot_password_email_per_15_minutes": 3,
  "password_reset_ip_per_15_minutes": 10,
  "password_reset_token_per_15_minutes": 5
}'::jsonb || value,
    updated_at = NOW()
WHERE key = 'rate_limits';