{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "20",
    "entityType": "User",
    "nonce": "0xee9d0f10279b272aad45479ea4242fa00f4d78adf5aaf749d80105a5a540ba69",
    "signature": "0x8bbbe8a808a58517d86d00d00cd613e68b333bb9d396ffb599a6b02dcbb4075610cc76a9021dc3a2f04cc61bd33c740b44322f4a88516cc3bc649c284bc852b21c",
    "signer": "0x3c6Aa744893389cd4CBFa53fdEd080B463b6984B",
    "userId": "326811555"
  }
}