{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "890512677",
    "entityType": "User",
    "nonce": "0x0c65f2c6a01c22a6440545f8c36f03933ea6f5fd99b23310858d9e8d74877599",
    "signature": "0xb55383f10f1b99d1ac44a424a34e486510f576d3c5e8c0c22d7897843306f063724ac9ec4220f76a36b626b7a5207fdf2d3d3d56ad21f969c72d4d7bdc8863741b",
    "signer": "0xb0bc7585AC84F169814851A3C22d8d92D133337F",
    "userId": "267657235"
  }
}