UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'It6X/0H3P9oFdkRWVDSjB9DOi7hCFo/3qA4i978GJNk=' 
WHERE 
  key_id = 'f773ba6fd5e6b04f455928413b6dac27d5d324b1a7fd29b7f616684ac06cc0a2' 
  AND (
    token = 'It6X/0H3P9oFdkRWVDSjB9DOi7hCFo/3qA4i978GJNk=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )

Query time 0.00023