{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "201319",
    "entityType": "User",
    "nonce": "0x5ad5d663af5bff788781a96a03ba28d4ef3f3ef9d5f0530814c0b351ee0b04d3",
    "signature": "0x2624980d9bed5a99c2b3f59ab40eda6dd92f8d245f84412a3b83597163b70a035f376b09bcf672ae71f4835cbe880b087c257817096bff3c02e404e42e5239d61b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}