{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "3870",
    "entityType": "User",
    "nonce": "0x1aac54805179b9e4ba704beb762b29a1507430c499259059ae0f910cf41a77b6",
    "signature": "0x7cce1cd55152f02b4dd7f0b26aee76b2ff84051471a4e3f4e7fe6769f6b7d90723434048146c40789cbe09c630b35658966609a166b9d886e5bf134bc3cf25981b",
    "signer": "0xE795526f098824a87a94C79d58a4299b51b20a3c",
    "userId": "837713671"
  }
}