Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '4bd389342eb2ce7c8f69a00bc923f3d0e55b974ed2534527d09f84bfdd7ca1a7' 
  AND token = 'q6orqmn1zC+KTOiEs5AXhh8BEZeK4qhzMnLFax6nDTA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00039

JSON explain

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