UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '8G7Qq1G5KB3l5d2H1bBCr8yQ4XpaSahAYugulTgZChY=' 
WHERE 
  key_id = 'e8d4e9209f6ba9a4a03a4eb0ddfa7925dfda5391f599267affedcf0508e4ff9b' 
  AND (
    token = '8G7Qq1G5KB3l5d2H1bBCr8yQ4XpaSahAYugulTgZChY=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )