{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x82ac8f036155ee640b67eef86a4f8871f08f8b8f4f0354ad78b1454a6539913a",
    "signature": "0xef4cde48d7154396fb1d74a18dec8f191228ba8e20e278b9035a377a705793cc726f4dfb5433d23afbd7f57a96ba0a0b9a74aceb005a9cace0c25532daeeb3991b",
    "signer": "0xB5e5765F248235c24b77fa8Fcf79a0b4f6880bF4",
    "userId": "772806374"
  }
}