{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x3ad9b2240ea2f6f985b31400d0d668d33456be137c593857a64108904cd61b47",
    "signature": "0x29ba5a993d678a51f5b6b8466bd0419e7adb74a8b7d493a44a6bf46d3718e15d562b1cb6e38e06a005c3d208235b601fb35dd14f17d872031056780678068c1b1c",
    "signer": "0x1E3179d8f63E67f26001D47dA032ea9f0f61EDB5",
    "userId": "891351056"
  }
}