Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'ed9b9814b31fd91348f6bad60452a22011698d4d9f018097a9d69ccadd7932f2' 
  AND token = 'rAbbavf//tVq+ptkHBJdqKj1adPeEJDg2X6Bw0sOdOo=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00042

JSON explain

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