{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1315631",
    "entityType": "User",
    "nonce": "0xe7c075e230c01ea16d83dd50e97df0c81626c264f296ebe172a5191b90460f98",
    "signature": "0xc9b1eb554caf3c67b6cec5b0b904e3d072d4208edcfef9b1a8ca80a1094331cc052b05ff6564eea4bfb40632ea2a370ecbe520e826652729a9ad331793cf0d331c",
    "signer": "0x8097f7562D3D2F9cbdBA391c45c0D376E438625d",
    "userId": "51978829"
  }
}