{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xab4fefb3b1fac53ce1473ba0980c9d2a249e82d401eb27db006a66ebae28121c",
    "signature": "0xa57ba18124b05f0f2e1bc7d05a43a314af7e6853f9424587bd5ddce641fcf60f74c4fa2348763ca096dd5ab9bbc8dc6429fad875ce86598e6d61f807e6814b6f1b",
    "signer": "0x8080BB4A26C665b7547F0b347405354194C5509b",
    "userId": "414989768"
  }
}