Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'e44f70041324b569675fbf3fa3c24675405b7dfed7f7923b15874b2245d52588' 
  AND token = 'BOGWw14ddUiiBNgZo/OZdXPD4OoCo37ZciWrxKjaygU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00047

JSON explain

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