Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '9afc7884d6c1828f6a0571d80e30e66bfb31f920de15a63e76c33022c425a6e6' 
  AND token = 'iQZGTh+AyXwZa1K1m58VEC/jSn17muojDohxT1ndoQA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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