Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '2cde40983921abdb2fae78b5d404cbe1fad7e487cae25656558e9b202aec693e' 
  AND token = 'qgze+7Uu2qTa0INyKB0d3BTv6xjmqbAXjxDKkQSi6MA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00040

JSON explain

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