Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '740c79528f435b94960eee547d1937264f2822d294edb4f7ba630b8cbaa00140' 
  AND token = 'Pk/GyrK/u1+T/aBoB5v4T+E6AiTHW6UObZJ5ZngtKnI=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00043

JSON explain

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