SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '24b586e38f80acac1d6eed74f9c36a5353be4d22f0decb1bb9bc1dd625b533e9' 
  AND token = 'jRO9Daw9rEWhS3zC8zDIVVAhzombpK7Gflg+Z+N8DG8=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00036

JSON explain

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