UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'vrsE2EkLVxtmwBUMS9hxynfYJNcAq0zQEl4A3UAaM1E=' 
WHERE 
  key_id = 'b984242d08bf928182752850a5ad06ce8f0e05e786c96b89952d321b6da3d396' 
  AND (
    token = 'vrsE2EkLVxtmwBUMS9hxynfYJNcAq0zQEl4A3UAaM1E=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )

Query time 0.00029