{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "458118601",
    "entityType": "User",
    "nonce": "0xbbc409090168afc835fb990adcb25a8c3275fe02ca5f538c16c926c721ed3944",
    "signature": "0x2d2524d2ab5f67fcfe3b5d7fc266d2ff67823449a7820acef9580e3edd7a14866f6b4c80fb46c27cfb1544b8386f81bf612229c9759b1b087383830675dbc08f1c",
    "signer": "0xc97A6025Ad8c7Ba1a35Ef7E3A3b88ABc8b2013BF",
    "userId": "666092734"
  }
}