SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '0f264eae49f1d968f1dd7a7bbb6ebb22c8119b318365ea96d893392affd7a8d7' 
  AND token = 'uJLjU6Az8w+cq5XKgtj1+iwOcbo0sM4B0K+dzui8E2w=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00024

JSON explain

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