{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xaaa419a37f40625a60aadd3c8db5f1e6c071a93de2adc2d95676eef89e187ea1",
    "signature": "0x5dd8eaf60f68dee4aa16db46cbf1dce0efe1d4d91ddd73e94a8b56fce69d3070242908a9e9b6ad085a12aa63c738c6851a490022e493807b8aa180453f8786f11b",
    "signer": "0x95039C5e9fA958bCe7C8bD76e20eb23F4E531e54",
    "userId": "708281325"
  }
}