{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x9430ea766f1bc778693573a8b92565ffb9dd797925bb72d07aa716bb3b981acf",
    "signature": "0xb8f7f74771a14ae9687060ba3276c517aff7dd28d7e939ef51bd201b923e6b3777fafed39c0f0bb6611b12f030be4e5739293ccb3d45385a9b9dc679f62538451b",
    "signer": "0x17da07548C54184F3b87169eF10dc08BE46148D3",
    "userId": "466185879"
  }
}