Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'd27907777a60f5b22d28cee2b802956f935c964e1c0ee7267ed6f3710e03f74a' 
  AND token = 'yp5LCzB151EylvxvZokxQNS5S0y3n0KdL8OKisGlVic=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00044

JSON explain

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