{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "325120979",
    "entityType": "User",
    "nonce": "0xfcab1ac60c4c95fee895c0d3b9b2572296d765ce76f6aa70464dedf97654f217",
    "signature": "0x2de551c2d655d76ad37c6c63f7e73ff62527d812f3de7d39e7708c156248d730287d6da2401a9583d05d90c83729e26419834e0b303f8cb1e76f965a095855a11b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}