{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xa9e26f0266bebd45b404e2d755253b1d78a65d6346d95cef261987bcbd3b876e",
    "signature": "0x25520ee861427ea0bb2a9e34272346a0d1e11b7c15451e4439e92a20be287c2d2d9b3bbb49d6f0f5732fd77a1ca89db2931ba8518f9c88a232ddf6a1475d556f1c",
    "signer": "0x7208bE8a98107938de0aA3BC63f5f1E4116C00E0",
    "userId": "426555002"
  }
}