UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'KN3Q57lKv6nb63snP03NVxUEYPGFIqBSdv/LvJmwQsM=' 
WHERE 
  key_id = '395916352dc17017837a0fb2dd0333029e4b5c1fbc65dfebe234339a87e57783' 
  AND (
    token = 'KN3Q57lKv6nb63snP03NVxUEYPGFIqBSdv/LvJmwQsM=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )

Query time 0.00029