Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '08ef1064ba21a077139fa7704d050a3779ec293f83f67ea578cb817f92ea8530' 
  AND token = 'vuAO6SO3kGZJuQOAI/I0RPfF1Neqs4+tQ0RFAgyXufA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00026

JSON explain

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