UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'KzTtzPg1cE/a81b2o51BP5TydfVmSSLN6nZyHI/TG40=' 
WHERE 
  key_id = '2cc68dc2995939881be9fb5921f6149e14756bb0cd0380dfa0645d67c9c18806' 
  AND (
    token = 'KzTtzPg1cE/a81b2o51BP5TydfVmSSLN6nZyHI/TG40=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )

Query time 0.00032