Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'c3079d70ab7dcb1890a2f00f0696363a84750c44922abbe6741113f7909f047c' 
  AND token = 'yfpF2SaYoWkbs65lVuhvLO4vT+fR9IJJyI4bi/jNrKw=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00047

JSON explain

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