UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'PY4Phyo9UyxosAq5r11lKhaUUp8UxLZije5O7Qjii4k=' 
WHERE 
  key_id = '28a450ccfd53b1a8d30bc2d1b6dcbfcddf409f9cf4223ea500cc44d4f9b8d507' 
  AND (
    token = 'PY4Phyo9UyxosAq5r11lKhaUUp8UxLZije5O7Qjii4k=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )

Query time 0.00021