{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "67542",
    "entityType": "User",
    "nonce": "0x5afe6a8cfe7e7649ff794f32d30ffb81b2c5c3f877ba0d2503fb63dae0c3171a",
    "signature": "0x8ba582df2cf397b2e97f61e1ffd05d6dd9a0ca4e5dfe6eb83d5318273ccb0fb67c4eff1ac624ce2c9669b63f6b527daffc45c57675f72676a9c08005410af18d1b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}