Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '32f45475f4f02abb261a1933dab52254329bfdd7938fb3f1f1185897ca409d02' 
  AND token = 'fU8A2VOIMi4A4S+74r2cMd/SaidXIpm9Sjm8Z3EKwAM=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00023

JSON explain

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