Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '7ccacdf7f242e5267b8513bbac17b14b7ea0b20ee0876927325ab7b9dfc3c6cf' 
  AND token = 'Cv2a1bG3iXEQn/zUgUkhlig3iRDl3EJQ67S1AgdqJ/k=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00093

JSON explain

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