Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '0d4bb32f3af09a275331f4d768a2af2b77b5b4d74b919d956de7f35d5f40ab11' 
  AND token = 'PHTxMRGUVCa3H4jNdWpAR06or1Z37gEN9sbUcZF9W+0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00048

JSON explain

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