{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xa39a70f896dbf8bf0f9820aafab7ca04e60f7c9555f6413ae4606addd435fb95",
    "signature": "0x2f10aced27c7af0e3cbc4c8cd7ec9fc8eabb7ac86c44aba1044e7c9bf8affafd31a187cf3ffebbd58c15faefbdbe1d841997a217b36162b36ff36830c0241de51c",
    "signer": "0xa3057aF73102b25DCac3840DbCeBaFd42e2C63Ff",
    "userId": "357213672"
  }
}