Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '02335165e7348cc20bcccd2c85eae8ec07fba5d5922df3cbb05e931b6259fb84' 
  AND token = 'n0DltRFeSVYHYr3T+6E0eIONFpS+Tu4M46WsXJJSLC0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00018

JSON explain

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