Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '69c6ae18c10788e761d211a46d710c69576f51591ac162ccb6db490d9803ee01' 
  AND token = 'wHgZP1RFmwnSn0C95mFfKoNz+3Q7N7NwQHuGLVJ8Jwc=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00020

JSON explain

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