Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'd149117f88497c03dfb39ecd7a0d33413f37943b0f1a232567f60017ee7e4839' 
  AND token = 'XNbxbIoIfn0E0J4PICYF8Cpd8iw1hxPQiUwlwY37hYQ=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00020

JSON explain

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