{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "511280302",
    "entityType": "User",
    "nonce": "0x13435962f2a84e8d715400aa2e3fe0189adde7a25c77bd2564eda939f185f1ca",
    "signature": "0xb64695b7878ccb76a6ee6bb29731b78feaedaae8cefd3fbcf959fe50c4a3d8a67ca98126043b0a2b8272919d36d6dfef7806cdd36b8fd72b2f56018cb38a6fce1b",
    "signer": "0xF6F9F433Ab5dDe3c96D63C2fFAa64b610599a410",
    "userId": "80682"
  }
}