Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'aa5f62c5d1aad66cee9783f43a166dae6cd190f1dbc7475cd8021f69f0232fe6' 
  AND token = 'DrWCPzK9FNR0PCfkqt9XNP7Ilkt5m5ytwBTpPPecBTk=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00029

JSON explain

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