UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '94uJ7gvcFADiFSyGQvrZYadehHIiygnqwZOwIqpFIaU=' 
WHERE 
  key_id = '51eaf0235d9ab1401ce0db2e6ae86fc3d6a5561ccb50a348d9480052a2a406d9' 
  AND (
    token = '94uJ7gvcFADiFSyGQvrZYadehHIiygnqwZOwIqpFIaU=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )