{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "3452",
    "entityType": "User",
    "nonce": "0x46d9f90a8c0001fdfd8f61a4f5fa2a8f450597e28aed729aa307a67116a84671",
    "signature": "0x085b76fa1e584169ab2038188f9152e4598b91f5935ce5615a15c9e97113aa2e69ec014b518f11e26e6e7b735548f6de3ad764f2a9d4fbf0ada562480bd803271c",
    "signer": "0x6754A920da1003d0904BdFf228A6E217Cd12bF5E",
    "userId": "105562689"
  }
}