{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "405466",
    "entityType": "User",
    "nonce": "0x4e11937f97c36310d530726f9d2f0dc5cf003e0b86bba6e30d1ac569a5b92b64",
    "signature": "0x8583eb54ab70343b36529b69aeef15732c8ab17ba36b99521719960f6b59e452042c3c06cebdff882e7009f3a3908237b52545096b74e1ece95dbf29a7c6118e1c",
    "signer": "0xA38C1a79132B9e85Fca6727527bCad4D8Ed4cf3e",
    "userId": "521925534"
  }
}