UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '4Jep9Uy/VemsqEZ8qq187HviRzDtwJsD4YTi8kVFYQs=' 
WHERE 
  key_id = '849c69518a959ec61a2a262911d3e3a28be43f4b14cf4aee28b1a47e19970fb5' 
  AND (
    token = '4Jep9Uy/VemsqEZ8qq187HviRzDtwJsD4YTi8kVFYQs=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )