{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x008e9f34d2192b0606e6111293f10c94806abe952b9750ca6864e99dc951e0b3",
    "signature": "0x1e1edd6f6283a73214544a33e176e7074b9d693a43ae19a7d51662bc519d415a3443ea976323f7ab1dcb913cebb97ab8cebe78d425d048df9eec5e0131cf45d91c",
    "signer": "0x403878fAca2D7BCf6E9b8F7364B70d2213b5E167",
    "userId": "355569194"
  }
}