UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 300, 
  token = '+2f+g6PZ5Y185T35sb303afjyrsJAp0oxP0gssOWfoQ=' 
WHERE 
  key_id = '123f76a2ae5d93b9552266566eca1fa036b484c47124ca4bc518427c6633273b' 
  AND (
    token = '+2f+g6PZ5Y185T35sb303afjyrsJAp0oxP0gssOWfoQ=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )