Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '0e60a7096d954750b98771d2d26b0f4edee8c736ec2cd3c476302d874535f76f' 
  AND token = 'FVKnmrdB3t9bfDeih6hi2sj6AFncbQ8ygr8+ovyy8Q8=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00025

JSON explain

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