UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'MmsnwsRON3Z2Ww2G4H8+Jz3zC2oMyc8iEWsCYEq7Iu0=' 
WHERE 
  key_id = '6bf5f7828ed85920489e15d4c06e4e4e5fc8124bcd70ef4a2e64116ba6172524' 
  AND (
    token = 'MmsnwsRON3Z2Ww2G4H8+Jz3zC2oMyc8iEWsCYEq7Iu0=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )