Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '44056d4cb523ab78a6847f711367c5347c64a9f591b116b62823c2dec9a6c877' 
  AND token = 'zkxgkgJAnmB6YxAd9GdLnkXg/PGhPXs5186NXBTeMkI=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00029

JSON explain

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