{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "297626",
    "entityType": "User",
    "nonce": "0xc523a9b901812dc5197a0b8866e8b5e1dae3019a7d023f20030919c894342b61",
    "signature": "0x981e364535019fc7b8e901b03fdf2cf6703cdd59608e7648f5582c779d2ca7fc044621aab141d91aa7cbe949d23284bfe4838f3bf0135e499415c02e4051c8ae1c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}