Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'e372713a784eacb4eb4af51ffbeea7a8c1d1d0540150e5876a656b68b639e599' 
  AND token = 'rBse/Z23teCc3N3EF0J0H5Gvp8SJT+pj1VUqJZruKRU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00036

JSON explain

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