Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'eae487c8df32fa931c0e868166a877411413fdea3c94116cf0bd4f8b0bf0de6e' 
  AND token = 'xCED58EFrSMEgwk5i9KbOaZk6p5Tsi6dftkII6H+L6g=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00016

JSON explain

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