Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '74edd658f8df1a4009152f3635780d9fc0719dc07848f781ec3dc658e03fa14e' 
  AND token = 'eP4fxMENqU5cxf8rN4YfNjve1W2nNeCVZTO4VkQC5FA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00031

JSON explain

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