Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '30322d76628d1a0e6e5c11d55e43f99e41e769d7149889f0f6f443dcee6b57d4' 
  AND token = 'n1kzDyGedWDO0BbMQot51Hs8f09LBZchzg2KflkZfL0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00014

JSON explain

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