{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "432267938",
    "entityType": "User",
    "nonce": "0x9844cafa2a199327e3ba7bded5603dde9671495b9eaa491fa596da9d638856df",
    "signature": "0x27369c07b9c0dcf63764e1c84b48b0f6874574e18f7fbb484239b93b135391894dff59ff7a30f152d8dcecf295e092f5d61ac3e65465942b5603905773b40b101b",
    "signer": "0x408CbFDbc09C9aFB99Da5f010D04f50A190b83B6",
    "userId": "675830993"
  }
}