UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'PLhg5vNVDBBfrexiw33w02JTGZJoRb2Jj/LJ3EFPNFc=' 
WHERE 
  key_id = 'b93ce71e0a6217de4a2d8dd87f6d57a0dea8201af6df5e72b1010fec74979637' 
  AND (
    token = 'PLhg5vNVDBBfrexiw33w02JTGZJoRb2Jj/LJ3EFPNFc=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )