{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xf9a6e537ca5d770896a89bb4ec37fe81b2c82ae14e7367341f0d0c382002fd3a",
    "signature": "0xc46c27c9ee016d37c6f0ea174114ec5240cbe2b3658759cdec30383c2f86eb82273b7cf0383003c5a6b3d29d3891e73ee26fb7db47ba75eed85dba8675609e171b",
    "signer": "0xAd8B2B9eD01775f6c434EFcB4A70540b624dAeD9",
    "userId": "699575507"
  }
}