{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "400171089",
    "entityType": "User",
    "nonce": "0xaacd5449cbf76378e12ec6f1f7324a3fe3ca58af75b873fce8a8a7d273b07923",
    "signature": "0x04f14f64be371f711659cfb6f044267a8842209d1cf763b5d17e61ef3a57eb02367f1010745b30bfb84bbe55328683c63d36d1321ab45f9d931212c917d698621b",
    "signer": "0x33892C91AF7a2aA34ff26f688557426a58D8c18a",
    "userId": "873346349"
  }
}