Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '07dfbaec984923cc5b07bde41216f7e8511317be07ff673594eb2723f1db72dc' 
  AND token = 'FRL/MwHYUQOYpzSOwWCcC7yhoF2wPp2qWtW75GOJXAo=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00024

JSON explain

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