Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'b103504466d05f44f8ba93946f6e3b3faf1014a972bdd2427824fb2359d258dd' 
  AND token = 'w061wBGhDN0CIg3qQGtLxc+3FNWu3Ztb6oIbXX+iUSM=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00020

JSON explain

{
  "query_block": {
    "select_id": 1,
    "message": "no matching row in const table"
  }
}