Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'dc4f615fc0af8c142b147c46fc5f57ff39ff1aeb9df2cf03fd4da0b64c38f6c2' 
  AND token = '2ZXxsrisRE1bC319nw7+OWtD3sGWdlCogm1DxUD5j80=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00018

JSON explain

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