Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '86f3eff41cc22a36b14be451cfa1ea18126cc2c963190c5b5e68e316341e2e5b' 
  AND token = 'hY8b6zG4B5BGZNS/THsRnUJRrgnMLW7vdQ3y1THdK1U=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00020

JSON explain

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