{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xc5f0f93db7bd2596a310824c716e35da0107d73d4bf6400f6fd513ee59a5c0f3",
    "signature": "0xb69398a171fb22efd9d4431f702a3719d7e22f9478f004e594921ceb022c97bb0c83e5015faf5b7a9137af098354fa67fdb60bb12fc8850328c4faf9672d455a1b",
    "signer": "0xC0fD21113d138662362D8fDbc78dAf2a4bD23f70",
    "userId": "271365270"
  }
}