{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "708077815",
    "entityType": "User",
    "nonce": "0x857de8c1a33f7500fd91d40aec94945c5a5c4e8eef974c8c553286f1f18daeaa",
    "signature": "0xda29238359be9dbe2d3e28dc7158526ebb0bb19b152de9d61a12a83ebbec875d09f94c56ba82391dbcbe00a7edc35d4929c7352f7b152d20e0c285b6437494d11b",
    "signer": "0xfa1f98f0530E55C2BEFA45f0F1B3A699b4559136",
    "userId": "149566028"
  }
}