Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '2edac8b841e5683a75a58acad6e11b97344a2b0766feed8013b783d8b9386fc4' 
  AND token = 'dR8Uq6YYgC9/IlIgIK8tghnII8hSAVma4UN1l4uQZVc=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00017

JSON explain

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