Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'd05439a675d5392999b91f2608e3be32e66f570429a025cb53b65a292bdf2955' 
  AND token = 'obmMUo3hgRr86bXyn5oRFldNvU6y9RWFb7QKG9RrbJ0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00041

JSON explain

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