UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'L3q09UHpyQmytfPhenqFoVKpu1ZbdQGM4oAWPuIQHDA=' 
WHERE 
  key_id = 'cbcd34d959c2b1e583a2c8a0b275866d5a052a12b2fce7dcf1a1cadfae2e7a8f' 
  AND (
    token = 'L3q09UHpyQmytfPhenqFoVKpu1ZbdQGM4oAWPuIQHDA=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )

Query time 0.00025