{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x56a8efd1edcc43975e232c2ba205475413d12c554a5a94c0b7452a3b0fbd6f1a",
    "signature": "0x1e382f024f412d458a619e8099060e5dc69f81af9857cc55b5e132ab798e2b63156c3b2ad5139fca81df1a69d21e57e8cc968ecceeb49b626a5c98dec358de871b",
    "signer": "0xa557Adde8983647D526D2B3301308bBbCf277d07",
    "userId": "48464585"
  }
}