Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'ceb1294b6bf7e9540206cab527ae6bf6ee83b1caf38331c0ea255e2c6008babe' 
  AND token = 'w+mzwg6hiypUGYx/noy5JIQ+4Pdsznt8cj7pWxSSaq4=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00045

JSON explain

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