Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '4089dab1cc311ef17e40e09647394e63388abf7619fa4a823259234b15c03e41' 
  AND token = 'w+SguaUDNC0//Hir3IOFdXXgLk1HFWk4wN5AJ6n7rvo=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00028

JSON explain

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