Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '854e17b3338b111098defbafe194373938e4ce489cef3b5c9b1cb1881eac8ccb' 
  AND token = 'agkn+85wjbe/e2enYc0X/Se+H6xvE3W6KvDdO2H7Guk=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00038

JSON explain

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