Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '7269ed46acc089cae0d8f782c68c334ca17b8168f618d30784e2fd9726c0524b' 
  AND token = 'sMrM21Kyv6t9Rynrlm1RBMpTCNceWPRaiiqRL3tR4Mg=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00020

JSON explain

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