UPDATE 
  cscart_aprillock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'b9publ8lpLYgEWWjNqJlcfw9WNmrqISUCg6jzF+f5MA=' 
WHERE 
  key_id = '8392a605d67f20473f71bacbfd4e3a36dc9d0f8635fa1e4a04cd3a834a9a93d1' 
  AND (
    token = 'b9publ8lpLYgEWWjNqJlcfw9WNmrqISUCg6jzF+f5MA=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )

Query time 0.00032