Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'b4ab1444836d574512be53523d0a326fe6f94b236aa7527054edd019b830b8ed' 
  AND token = 'RcO+l1bpT/Nd6QI8o+o6tnP6dOENX4A2CM5b/8EVN/E=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00048

JSON explain

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