Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '22bcace653cbe65ede1c84216b0d233b548538523b1d22deca807ee5714b8afa' 
  AND token = '+vEZMZV0LSOUgnwXFVyuKGFZhpeipk7U5mkdvXEh5/M=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00029

JSON explain

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