Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '840bb03377351b5b02be4725f7f332f4cd7802994c2ca6205b5a87a59b59005a' 
  AND token = 'mLMlaoqW4GnL7V/MkjSUIr9LtBaIQLoCoMlvN90gw9o=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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