{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "81402",
    "entityType": "User",
    "nonce": "0x3feae7ef71324f88cdc029f0941e766e5d98c587154319eb2b6c2a9328c1a702",
    "signature": "0x8e55833c1f62fac8dd580049d329a4209eb43f7c53eef90b26c64c34ba56bec756800c8492459e78977d6b6845e5d4a7f4866f25c4339439d67e2b524803565f1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}