Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'be036e5fe012b555fb48ba4c7660a0dc87642134a7ffa455acfd5675a48f4fe4' 
  AND token = 'zduPBxGMHH18hA/efx8mBUfRceMtXkq/n9UA2LVFjgc=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00048

JSON explain

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