UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'A8fcbM9uSOXPzYYP8XVCTp/jkOY/x+iV/JBiW8MqZYk=' 
WHERE 
  key_id = '81ca1bd4f8bd80e68462f09397c49650281f33f0ba97f784a7c1aa779614dd83' 
  AND (
    token = 'A8fcbM9uSOXPzYYP8XVCTp/jkOY/x+iV/JBiW8MqZYk=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )

Query time 0.00063