UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'R6FJVmESWokS/kyUWj1KOfCbUHhk2iaNVUMzi/aYhJs=' 
WHERE 
  key_id = '518311561c3e64d6939ba7e3e9ab094deed2b7080063ba5ce305826c2486d116' 
  AND (
    token = 'R6FJVmESWokS/kyUWj1KOfCbUHhk2iaNVUMzi/aYhJs=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )