Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'fbae1180ea6a12102fc4e0bb104c19fab3c4933af41753c22178eafa0b814273' 
  AND token = 'hRjEz89yJ/rRU90fj8bSf2INtY5Z4OmKVT/j4emuWLg=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00030

JSON explain

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