{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "223536026",
    "entityType": "User",
    "nonce": "0x16beb33f200a7b5f79c44e543599fbfaed7a56744762fe8c92db34cad1a710b1",
    "signature": "0xb0b941793369940f2197c83de60048e53dcfc92e0c961712838f7e4eb85bda44667a6f203ffc7fc9d7817ca6ef9b708b9070ff85e745d8975c17d9e3b4cd32441c",
    "signer": "0x9149C438b2FBf68d0e846EEfE2E6B19be686Af42",
    "userId": "843"
  }
}