Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '06a6a77eb9238c7082eba1fcc73a3b9a4e742a4db1d32b44ae268ef3800e994f' 
  AND token = 'Mr0m00Jbbb9GIRnDHoSCgLhqS+c5f6d27cMFDNhGNjM=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00015

JSON explain

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