UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'PLSVjXMIDmmLl6EoPOfYCwp9eeK7HVHE8+Bjibs75C8=' 
WHERE 
  key_id = '50408bd82a979fcb16bd24b6580e4c0bd6316b6deee698b040d58aef09e2b1b1' 
  AND (
    token = 'PLSVjXMIDmmLl6EoPOfYCwp9eeK7HVHE8+Bjibs75C8=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )