Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '0e010539417e5c7c58c692ae4bba7824e1895a97640452ac98afc40934435645' 
  AND token = 'GRCEYOonIyRiRLiC7dAPklXulkyIafdeX/xnkH6+LUw=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00014

JSON explain

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