UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'epaKUgz7jpXmtOgYFBVncRcVn3fjVgf4KnTJ9CqIXEg=' 
WHERE 
  key_id = 'b57dc897ff75e97d3367416936d1e1c45784619e8014a07253acf34e58c65403' 
  AND (
    token = 'epaKUgz7jpXmtOgYFBVncRcVn3fjVgf4KnTJ9CqIXEg=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )