{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "708077815",
    "entityType": "User",
    "nonce": "0x906248bbb9a865bad4200a7bf391a616d8d4e331272b70cb948518a2188b6bdf",
    "signature": "0x9f558a966ba05bec930037a869f1c06096b6727c5b5277b352d5af4a3438808405c53d1833008823fa67367bfe8624bf86f7e15ba7e709cf7ff8065a74ce54ca1c",
    "signer": "0x24844077bE6bb825c0548F36B4EFA030d05Ee1CD",
    "userId": "601282125"
  }
}