{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xc0ba8eda38d7d9aa4912cbb315cff3840ba6a88e03d7b571153482f8254d2efd",
    "signature": "0xbf5ee09560d850ed99ce4444d8708e42c61735534f95e7a80ba0378e35cda3ed656772cec88c472f24262b1a813e767870799ed1b4f5b0d26740233caa3352a41c",
    "signer": "0xbF4F1f4df4779768AfE75515b1552a2Bc5b4Dd32",
    "userId": "100976759"
  }
}