UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'LZxKWCfShLL+Lpz87n15fcC+BeQPL6o2+/xxK/eNt2g=' 
WHERE 
  key_id = '3c87400b32a0941b37e25b8aaeb704c7e1ed381bdef57a2d50a5b5e7255a1e0a' 
  AND (
    token = 'LZxKWCfShLL+Lpz87n15fcC+BeQPL6o2+/xxK/eNt2g=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )

Query time 0.00100