{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "780083254",
    "entityType": "User",
    "nonce": "0xf10be31827ab60bfce404fe2b1f92b5b1f71a881b285d084486e1e381c622fae",
    "signature": "0x0351848acc247ab92e8898ceb6daf8ed9dc486fab78d0460edf2c15fc6059b09465241d0fd56e515e44a5cebf721bf4e0c829763f36a0db982219df0ae4a88c01c",
    "signer": "0xA5fFfA5b8673Fb93490E3F9B0BeE58e1f0Ce1231",
    "userId": "508186998"
  }
}