UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'S5TFzreqry+EkeXQW08RrTp8sDTquwBIz+gbIibE6a0=' 
WHERE 
  key_id = '50615d4c761aae52ec4973e0eeb77b448ddef464b3ac1ca4c2af6910637345f4' 
  AND (
    token = 'S5TFzreqry+EkeXQW08RrTp8sDTquwBIz+gbIibE6a0=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )