Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'eddfc47d868f72129990474782cdeae82ad07d0ea96a18ccdc6fff56cf2d7c87' 
  AND token = '7xTnhGQlqgjjiJR8hx0ZuHI6r4OhYthVSdHqhZhGrgA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00032

JSON explain

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