Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '774058829b66aeb2a7037073649aa24f7a54f63bc6e412d5969a8a0e4b6663d3' 
  AND token = 'Yz2/XIux91HEMQZrABEoGn0O95yb6XHg+O8su0KOOv0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00043

JSON explain

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