Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '4abeb8325e31b482224d99aea8a6804bf58774aeb4f68a8dce7c2004b57cbc04' 
  AND token = '2vZjMnbu0FkKU1R+xGZnJfAvohPpBQDvoivD5Xl2tI4=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00062

JSON explain

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