SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '95fa3acf87b4a653f015ffa4e60420f38693ceb86698436e1de0f2e17c7e8d02' 
  AND token = 'IXsSg+J0+VYnVSK3m55M3qhP9+3tAKZnHwXfQ7D2n/M=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00050

JSON explain

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