{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "866636243",
    "entityType": "User",
    "nonce": "0x34d7cfebbadecef6a06f0cc6265f02d5abdf632dfe7b5eccf050e4c1947e3c6e",
    "signature": "0x31500e9a2d74e27a689a424453790185d931bc059eb15b5d5e060062e6603d586ee64197caeb55a9cf298fb376fd63c32a6c79cec974c92e0e491ce0408bb4861c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}