Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '9a158cb9f31a6141eccf62804751edf1c95b89953c458cc96d9575818effe586' 
  AND token = 'oPDwZ28IpSuTSvysoo5zsveIV2GUMdoYGECssRujebM=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00015

JSON explain

{
  "query_block": {
    "select_id": 1,
    "table": {
      "message": "Impossible WHERE noticed after reading const tables"
    }
  }
}