{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "146510",
    "entityType": "User",
    "nonce": "0xc51cf84fd0f46acff53428c5520cc703642ee3519841cf5ae013c8a693258995",
    "signature": "0xf8a5dd014859fd812e2a843faa7c71d9a824dc446197fefe069e7e6684f9f7f55e7675c26e8dcaea7db43da130f8cf5b73f69a7e8128f9514170165dce26a2d21c",
    "signer": "0xB9cEc556fCC8ef798bd80c79aC6631122F693A87",
    "userId": "492038763"
  }
}