Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '50c52f9b7c7a3a7531a2d1a8b86b89a1e035d720afec01414eaa4adfa852c090' 
  AND token = 'SwF3jzT1LW6/424A2O4fT0qjwVnF8BpGv1kP7lu4tqE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00032

JSON explain

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