Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'ba1c5158e3017307da9ffafbb63199267678f356e8f3ab09bf5b503654c7d0e5' 
  AND token = 'wUqe/LH0bqoOLnh66kTcbIUV0xnpdaCS4N2X5lE4O+4=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00047

JSON explain

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