Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'ddfde2a275ae40ac57030c5a9e115f0dc3b729fbf0fb4a8cfbd6ab8ba15d4bef' 
  AND token = 'fhx4i8yvNj0AjWpFapDjZM5MQFhfZyRPht9ifokK7jY=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00018

JSON explain

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