Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'ecaa0a772b6cf3a9f19681727813580b883c47f96d64a9f743d24b9dae6bfa7f' 
  AND token = 'mFSxemrAuk2HVpRLClG8aWHs3sRWfCV/LbPrKleQchA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00028

JSON explain

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