{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x1169a96678190152ed5f113f0c2fd6d210a3328dbccb3eac38a26078318ec6f0",
    "signature": "0x05b633ca0032f8222dd2d349944aa8591330a776c3799cf10b0fb96c193c9df04fa0128124383f743a8d825c1bf673c402a6617d99d644920ac5582b286239241b",
    "signer": "0x4FD8D9B08667CCCa706De600C8242dcEFF01d9D4",
    "userId": "392873011"
  }
}