Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '0c980351d21e0f716aa001d126c4bdbe38ec46663105cb608fb5501d39e41fae' 
  AND token = 'uYJWOlWhOUdFQgKobCllM+sLGwn8J4GZPD3G0m2AFG8=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00015

JSON explain

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