Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '7157f07295e4ac3d6157ea1682bc7e660cb048c97b05f8826087ce73194e37fa' 
  AND token = 'm6S5HggWjkyT2UAo6f/NSgSyK1zkMGHORQ4maBX7suk=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00026

JSON explain

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