UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'MCMiT6Axl8bt8ZcHhvsMKOHPNW55l1ABqxSrIbv9mXU=' 
WHERE 
  key_id = 'a8014e8bd444d2b27abe8ed069dda140c41ddd7545266cc665d002805b7d8303' 
  AND (
    token = 'MCMiT6Axl8bt8ZcHhvsMKOHPNW55l1ABqxSrIbv9mXU=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )