Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '01f34a187188ba5d89e81c893657adfb961e136e60d69f45f058b59867d73d36' 
  AND token = 'wbSfdXlzLhZ/vNVpGbsUQQgMn6pm1+6nWIU4G4O6wD4=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00045

JSON explain

{
  "query_block": {
    "select_id": 1,
    "table": {
      "message": "Impossible WHERE noticed after reading const tables"
    }
  }
}