UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'P6ygvEywFf8LAtD35bOKvGMoaDYBnMg8OIRkHITtqtY=' 
WHERE 
  key_id = '4843924b2885f552defe37b06c920b424585b9d3275c8e68e45af1c6ca3b4e6a' 
  AND (
    token = 'P6ygvEywFf8LAtD35bOKvGMoaDYBnMg8OIRkHITtqtY=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )