Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'adae585d621cc70c7fea496f34a7b331643c4d636da83e5f44b5218367aa618c' 
  AND token = 'AeEOFKNWJAudY8u7RDSDYWqpcjU4rxaOfagfktcMFcY=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00017

JSON explain

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