UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'p/Zbv2Reo4dapxgVC//dDhQq91OJjxnZaDYxpNOwRBA=' 
WHERE 
  key_id = 'a2b67750c3b0ad81a7aa6ea73df6e5053d9bc8cbaa3072994b016cabe4764cf6' 
  AND (
    token = 'p/Zbv2Reo4dapxgVC//dDhQq91OJjxnZaDYxpNOwRBA=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )

Query time 0.00035