UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'nChf9Kgyi97wLiNGPubk6bHLRZH4stP7hNfQgVpzuv4=' 
WHERE 
  key_id = 'b51f4572af09a26dfa522d49d65674836fede187bb105bc242f577902d8527da' 
  AND (
    token = 'nChf9Kgyi97wLiNGPubk6bHLRZH4stP7hNfQgVpzuv4=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )