{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "309080",
    "entityType": "User",
    "nonce": "0x00835516da4adaf3a0819df9758f0baf8c657a09e7bbfc5a0cd0a88c6fc1c3d6",
    "signature": "0xd2c1314663973554b2cd408d0ff056a57849735a81dfe76eb6b9dd4c2d9ff4455a7e6ea75041eb76ac6a246be0968b4fd7c892ed7cc6893c940efe6e83f178151c",
    "signer": "0xeFC9B78A20535768B9d5BCd2702b853bd5C0789c",
    "userId": "333246"
  }
}