UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'yd0gGMAmb4SUcSZXs18R+CKprv/eHkxnNkekFvvhbrU=' 
WHERE 
  key_id = '613ef49604e69d18d51777aaf4c7e95f058e51d47d633a2dac41b982e7aec8b9' 
  AND (
    token = 'yd0gGMAmb4SUcSZXs18R+CKprv/eHkxnNkekFvvhbrU=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )

Query time 0.00027