Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '95e3dba36b2f8fd3ae52a036b2317753a9aa6649140465523c7df6e7d34a8fc4' 
  AND token = 'yAaAF66Js/CPwoC1DBPmH9INX9VK3OfBqZteoI9K0As=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00023

JSON explain

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