{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51674",
    "entityType": "User",
    "nonce": "0xec0020a36d42db0c4db57fe9e5e9707f0c7616f7d2b2b342a93c5c35aa1d67d9",
    "signature": "0x144452f95d3217668fbe8c4cc4689c5fe2a0fa3a7fae2ed0bcbfa2b01156065c1175c8a8a315701c73d8a87794a34d07fc7b5ffedeacae7acfeb1a3ad71ab25b1b",
    "signer": "0xD7Db519a2A03374B0548c02822bE88402aef1E5b",
    "userId": "715241773"
  }
}