Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '0eb565b7f32e5ce588429773e29495a0d2f4dda26ab3ef14e5bc3c8c000e82e9' 
  AND token = 'LjvJrho2X90VNo1F2l8XtlPm7g6ElPaVYGeF96OkqpU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00041

JSON explain

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