{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "445042807",
    "entityType": "User",
    "nonce": "0x4cd507f7b37c2f565e95608963597569c3f67c2572c307045adbbda2b076704e",
    "signature": "0x3e9116494a5fa91a7ea32185af50b83f165bdcd7ca6f833b99c5c16c293fe001489a8177376d4c85825a6645079e3c9649d458d0b56f17dc9509bea5c45852db1b",
    "signer": "0x7bF90aDB0D4f329e1dA9BB5123768023eD007adf",
    "userId": "111728084"
  }
}