Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '3946d9ae4459b8c180e99e2504739d412a5539d007ac1697213fb8e0aae3f6e6' 
  AND token = 'E8IVDZMwRusFuYR+q/meu903mFLUU70d14UU03Lc0yI=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00044

JSON explain

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