UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'mDDR3Q8uDQ2DVvEEdSpj48og3VWgZABzM1vkNuSKDus=' 
WHERE 
  key_id = '6ca87db60bb5e1c1d8cd1e92f336849e652661a9d1f83f1815665eece463deef' 
  AND (
    token = 'mDDR3Q8uDQ2DVvEEdSpj48og3VWgZABzM1vkNuSKDus=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )