{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x14009af89d2b73cde64ceb9157fb7c67f6e27e1e131c5803d55ae413d88bb03e",
    "signature": "0x328e126fad2ca1ebd10b64f8a5cb2ab8c320e76e35776ed116a1c6e8812ce15825f774a415602e1b9cdaa36eab9744d547f0b0674c67b992e0b85d93a10a67061b",
    "signer": "0x81EFA534196e076193ecAA58E56299e2828d8589",
    "userId": "763716479"
  }
}