Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '2bea5a22d9b8087747c8059ec0c79e0154e3151fc0c84805e0db87c4f2286161' 
  AND token = 'TWWFmXeJIRaA0/4ZOYh/KrNEGxO3tS7eRHA3GNUmGSo=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00032

JSON explain

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