{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "617072743",
    "entityType": "User",
    "nonce": "0x6abccfe71f4395b8d5eca59355fd05756749f9a5a98daa9c782ca65ba6a20df0",
    "signature": "0x89ab11ce27213aaf7b2cfb0c72d83037b8212aa01ed77abf12d91da5b967909f1e4ec34a61b24ae40d2503c06d4620a9ecf5d813ec97dae5ec36cb84d37b218d1c",
    "signer": "0x474B8467757bEdBa76afC2394cfCb801C991B143",
    "userId": "815537464"
  }
}