Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '8dee444ddc426f3c93b9c0cc8b34cf15817000cbc323d4ec0561e285e8eba80a' 
  AND token = 'G4pgO5Gsuif9jejIbCcs3hFIMK9JMMEw8wszUNC/dBQ=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00049

JSON explain

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