UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Gr/W1hpmSta3B93svgcyWUYMPuJ6IZ9JCvnrcW2eyto=' 
WHERE 
  key_id = '39cbc54ff7305820562d14e3403c82362124f57d6f2f11af67ea42c8dfb036f1' 
  AND (
    token = 'Gr/W1hpmSta3B93svgcyWUYMPuJ6IZ9JCvnrcW2eyto=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )