{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "477169",
    "entityType": "User",
    "nonce": "0x2d1bd70372ced9333447efbfb2f9c803d98eb5a38ee247dc790ae39f772e559a",
    "signature": "0xb3bb22560c4985bcbb69f9a8c1015992e11ae6fd218e4dfc88f0fbd4df11119a7d55df05689309c2e4bd3d46d10d50076b3a88b00aa4d354e12d9f1ae41154101c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}