Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'b41cdbc549d3664607cde3a17d90d068b7fba9281cd9b3292b26f28a92e65008' 
  AND token = 'nh1hg2BPY3eInj6gQPbEySoqL9FEmtFQ+LhofXmzbzM=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00045

JSON explain

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