Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '61632bd565546e1ddacdc38e8f36476cf79ee31ed4de4d987af0dd46e5339a3b' 
  AND token = 'enAJruhjcfpPxR/eZcE7axuWhWROagkvxLWbBhTjWmQ=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00044

JSON explain

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