Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '60bc6b43cd2b6a6b82cb77562a5c3794bd4267005284dcfe5bba1d974159acd4' 
  AND token = 'bvYRxLQO13P8rDEEjAzkALrVP7zGRUuy2yd5RFRDhfo=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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