{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "67708",
    "entityType": "User",
    "nonce": "0xdf27fece35afe9212b7b587d198e326af4317c7fb3205fc1c396099167c538fb",
    "signature": "0x1e28f3cdac6ed26e5652f47de27ca57b34c8d947e0fd07fb8620712a4743e25e764ef4a759d7c59028f35d11de9255904bae46d45469a73b3175468244840ca41b",
    "signer": "0x474B8467757bEdBa76afC2394cfCb801C991B143",
    "userId": "815537464"
  }
}