{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x0212ed3184161b96d195015c1219428362df9854c6eb9f4cd6ac217a2a61f5bd",
    "signature": "0x19851100b74387e2cdcc6829326c9c75bd8da1a129aa100700f32937220c28203fc08430df0546afe8f3f9d3375691dbb4e67e354706828c4e61034f2b3849531b",
    "signer": "0x4D72d63bB6108D138AfaB7171b6099BC6c3d5831",
    "userId": "692340677"
  }
}