Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '32a8f5ab77be36024ede0196d13d6e56ee5946179d9b37b5048c232c52bc1c8f' 
  AND token = 'FrAxckFLjmY/r2twDOZLBN6bTo5sLyodDejpgKTLpqM=' 
  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"
    }
  }
}