Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '5b32b01a4e72ac08b5135b77ab0940d36981202875a4620c798b89e1006d9827' 
  AND token = '9pAOYEGu8OI21c1m9mHyGoOojHssPGUg07gYG5RhlR0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00020

JSON explain

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