SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'ccea3614e2e8cd872f3855f714027fb8090ee742e8cbbc3b7e8475821b58f8d4' 
  AND token = 'ZbPrXbvzSUkfqB63+xUqbLWZGmviC6oI6tpyn6wAaIY=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00032

JSON explain

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