{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "18484",
    "entityType": "User",
    "nonce": "0x0fa61d9835cf6715ec30f05f4b27dc3fcd26af89bbb86fb418825a71c36918be",
    "signature": "0x7ee395f319d70daca33c3ef0aea49318f881622d06cbe86691e1eae599c1fe44633002f9d579b142e60ec73056afdcd7a58fbe38c474b6a0f09073f7c5b24d2c1c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}