Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '3eeba8746d0fc952a0e7d234fa965cc90b91a2ec4cd7ae306f372970e2766eff' 
  AND token = 'TrOXmjOQiVXig4qhsOz4Dr6yBusdkb5kTLcUZ7aDa9o=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00040

JSON explain

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