Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'a5987adcc38f3298d50e691340db7694b8ac841c88289405b47811c81a17c1c4' 
  AND token = 'aaH5RSll2AUMR67WXvqGSeQHjSHEcx2P7Hduj4LgFJc=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00045

JSON explain

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