Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '1911739e188b917d2a26849cf31329dda7189e39cf5e1317deb08c9c1d27308d' 
  AND token = 'V24AKBCnuZkZe4gqXP6OucGBxPS6Waw4LR3Hrx1Lu5Q=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00064

JSON explain

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