Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '0d0332fc8310d28b39db7b27387353dbbbedd6bbe582253a3b26c4ebe28f462b' 
  AND token = 'i6tmD8mCo+219XUlgdYE77rTx5iIOmql9cS2kDsAUF4=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00040

JSON explain

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