UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '6L6sKHF9gZz3nYOtXrGBmPQeEMrepk4hFXVU7XOwDc4=' 
WHERE 
  key_id = '8b6a9b3198ad25ffb0671ad4808b162d8c8d553621b365e2ac4a4706a4433c78' 
  AND (
    token = '6L6sKHF9gZz3nYOtXrGBmPQeEMrepk4hFXVU7XOwDc4=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )

Query time 0.00031