SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '4b0dc11408ae7acf258ec7516479b432ebde80c0fb5d8a808114333795bb8ac1' 
  AND token = 'J0CyUFWZTD2mjFuODPxC4U934Rz5O6c9UoBg8GACJvw=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00032

JSON explain

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