UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'rc9FrD/QItwKs5MILU4CRSpcNwL6FsQfOq5eLUgyJgo=' 
WHERE 
  key_id = '935e8b1bd12b0f33d9b48448fb382c50b63746beaf3b204773491b129231f626' 
  AND (
    token = 'rc9FrD/QItwKs5MILU4CRSpcNwL6FsQfOq5eLUgyJgo=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )