{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x50bb776625686e98fc4c7e0fb677fcfc1851d79f8379d7f48d0b734bca9c84d8",
    "signature": "0x60dc8ecf8c2b58f805ac308575374fd375f087fd691624a7ad38d06b088e3a6347858d56e3054710194ec255f112cba519b790011b7163c7a730517cf31552631b",
    "signer": "0x97BBA85E2FC209683375cc96C407927a546b82Cb",
    "userId": "776013071"
  }
}