Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '853f5ed58d9d9fed1ff3b452bd77bb513fa820917b59559837ec000528e9d8b6' 
  AND token = '9S9WgwUQQjHE71/4LtPOTJvCjic+XhAvcn1yyUR/O6w=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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