{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "43309",
    "entityType": "User",
    "nonce": "0xe96cd8c72e3913bc47412e12b4667e337f4a9adf4d2c042f8a9c5cdd63f3e97d",
    "signature": "0x236466bee95901a2517112e457b2ecd4ab7e5d0866540dd9b54c82d394c2bd7f5f194ef1db6c42e1fd667f8b8cf327f1d7bb2eb762a55e1c5efd8bde14b114ae1b",
    "signer": "0x4ad870a0C318214b4796d1464BC8Dc57C6b84C12",
    "userId": "408505072"
  }
}