{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x9cbc92de87d900df2ce96166b48b0495484398dc58aa837723b93c1c61730f47",
    "signature": "0xb601c6cee19b210975b0af2e445f80ddfd143a2160404d8bce2dbd9e647153a93e57bbdf4fe32b2d5eda7b7667b9c5d9b13ba2f30042e4878d7ecdee3c5813691b",
    "signer": "0x02d6C9e762D4F4822c80A4542Ce064857481d94C",
    "userId": "989304264"
  }
}