Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '778ec6581c7277e735f9159788f043d634f0bdc9b37dca8d272f231f4ab9c336' 
  AND token = 'AXGQ5US9tn8KDtIWE3oRI8gqYn7g2qW2gyMPXjc6wpk=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00050

JSON explain

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