Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '38b427576d20f311b352e10b5c8703b7dfba98fc24556f3fbe8a5c4f97f0485a' 
  AND token = 'yD55QWIZxQHOylLDKW1GNqVKa5eby+Baf9Tji4Zk/Ak=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00028

JSON explain

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