Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '1c0c27c1324e23db24d5168f716c4cc078a1c0ca3af8e79ec372616c5a43d715' 
  AND token = '6prWc+6V9t5t8/1y2FTXp8iAt91mFv2Xm2JHZ6QdS00=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00025

JSON explain

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