{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "228777558",
    "entityType": "User",
    "nonce": "0xdff0f611a507e4f6a9e95a6d8199a382ea72872f978098f724ae76b4bf742412",
    "signature": "0x30bdc97af4adfc1c66858f6ca47720163ab18cf2d035f5717ede27a4b36aed72726227b97019074761070244fc856a5187cbefe6abd65293b82c53c59c2928fc1b",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}