Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'c9bb6aeb36dbefe2da50ae96b81b580d181abaeb1626ed90798a24e6559c23e9' 
  AND token = 'bLMObOkVZRs4vnbbcA2bsknDEUeLmx9g/d/onQko6hA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00046

JSON explain

{
  "query_block": {
    "select_id": 1,
    "table": {
      "message": "Impossible WHERE noticed after reading const tables"
    }
  }
}