{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "39312",
    "entityType": "User",
    "nonce": "0x4dafee4749717bfb43256f652878b1cc79d7bb5017b4a9d25950325a05296b00",
    "signature": "0x5fbac4961669e1d6c8c3b1e0f7a88912c2b1e6f8c7eb538b63839153f436e9932a4943f0ff0b10fee30ad1f1eb34fc6f70239429c686b2b88c868fc6c94267961c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}