{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xd3ee3b33f08d5c81e99dbd0f2a211227e64045388018882f43b71b2b801f984c",
    "signature": "0x8208dad91bdebc475d98b6546ee4e124a427b8c91173a4ef4349fe5e618098b80a1931a8df52feaf0f08e5acb061fcca2a546d5d0b2f6cec7bd8b976ab1d9aae1c",
    "signer": "0x3BA6454eB2EcCD2f8c7A6f46C198fB0C13D60658",
    "userId": "872763461"
  }
}