UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'UxUuu57WfqPsEzQ9xti3Mxl9bWB4H7aPH/RI79EYO4k=' 
WHERE 
  key_id = '50139b3440592fb8c792fa73809af58919832de9739f6000a4c7525d2ed0345a' 
  AND (
    token = 'UxUuu57WfqPsEzQ9xti3Mxl9bWB4H7aPH/RI79EYO4k=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )