Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '02071e82f52d53993d1f0bbb54e2da3cbe9339de59fbcb2c8373864fe7fb4709' 
  AND token = 'HKoYmS5aV5nglo9KNDGK9sV8+M74f4MHavWv5Hwj/IA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00020

JSON explain

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