Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'ab2b96642528e543859d402341fc2e5486bf3ec18cddbc5f34da9b4328a9d1b7' 
  AND token = '3fokYyM8gM1HALQid+IFQaUJD2WM/v4y1wwV7mJoV2M=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00140

JSON explain

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