UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'm6NqyFc+ZETqYXEPjDTaeltPw3z28glf3UYSjr1aOSM=' 
WHERE 
  key_id = 'a50dec72731a5ef372889db82b9138f73ce08ef5c718f37bfa9016ce0e08a2e1' 
  AND (
    token = 'm6NqyFc+ZETqYXEPjDTaeltPw3z28glf3UYSjr1aOSM=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )