Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '882726b73d728c4d87267b8c520a20a3b8339e959e3d2274369ce99f59ab45f8' 
  AND token = 'zbfxduHoDl/+DHdau0jpEKs6siP9WP54+njFDatk4Pg=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00031

JSON explain

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