UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'RNSRkaXQWtU3e9cQTlhf51YAczj2eZjQMF9jNf5CX14=' 
WHERE 
  key_id = 'c851903d093e10061f25b45f9d020ebf79b352df2a3acd3cb9083cc7afcadb0b' 
  AND (
    token = 'RNSRkaXQWtU3e9cQTlhf51YAczj2eZjQMF9jNf5CX14=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )