{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "117913",
    "entityType": "User",
    "nonce": "0x1f71b5a6921bbf63f8c4db72ce10b8943169b09b0a2ac7df91c02f09ec88a69a",
    "signature": "0x64e4ca6da0e4774b65a3c2bbd196f59a5bd16f55c0f9f046ea7851ab6797c9695a751f3786641dc45ed7dcb552de0eafe4bc295cdd3236f9825a69d6807e07141c",
    "signer": "0x408CbFDbc09C9aFB99Da5f010D04f50A190b83B6",
    "userId": "675830993"
  }
}