{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x7abbab539ac777da7f2e34aab802bb4ec47cc2fc9f357d8947b7173d12788871",
    "signature": "0xbeef9e2cf8f2f1d18c0506921c025c5a0a8540dd8db919a2d4d409ff7d3272523be41e15b01e4a36b186318abefad7c28a303db3a0087119d78145e7d216b13d1c",
    "signer": "0xD68143bb8B93fBEE8b47D3E9a9Ed8b1C8c16F948",
    "userId": "72366942"
  }
}