Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'c563d2abc6e14cc362da2b306641c152f8b03a31d6369d07f7ad3fca3c258e92' 
  AND token = 'EHESbtyLLzD2inHmPkm4CtbA4Pn/QhnU7U0m3zNg55o=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00032

JSON explain

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