UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'z2gSB9KLtU+sR5fy2gt6g6XOe4P5nZUNgcxvP+4Abxk=' 
WHERE 
  key_id = '40e789507153d103fe06d21c9dbdd3fa0f3d976b33908c2a54e7c021eb6ec841' 
  AND (
    token = 'z2gSB9KLtU+sR5fy2gt6g6XOe4P5nZUNgcxvP+4Abxk=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )